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<a href="device__radix__sort_8cuh.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno">    1</span>&#160;</div>
<div class="line"><a name="l00002"></a><span class="lineno">    2</span>&#160;<span class="comment">/******************************************************************************</span></div>
<div class="line"><a name="l00003"></a><span class="lineno">    3</span>&#160;<span class="comment"> * Copyright (c) 2011, Duane Merrill.  All rights reserved.</span></div>
<div class="line"><a name="l00004"></a><span class="lineno">    4</span>&#160;<span class="comment"> * Copyright (c) 2011-2013, NVIDIA CORPORATION.  All rights reserved.</span></div>
<div class="line"><a name="l00005"></a><span class="lineno">    5</span>&#160;<span class="comment"> *</span></div>
<div class="line"><a name="l00006"></a><span class="lineno">    6</span>&#160;<span class="comment"> * Redistribution and use in source and binary forms, with or without</span></div>
<div class="line"><a name="l00007"></a><span class="lineno">    7</span>&#160;<span class="comment"> * modification, are permitted provided that the following conditions are met:</span></div>
<div class="line"><a name="l00008"></a><span class="lineno">    8</span>&#160;<span class="comment"> *     * Redistributions of source code must retain the above copyright</span></div>
<div class="line"><a name="l00009"></a><span class="lineno">    9</span>&#160;<span class="comment"> *       notice, this list of conditions and the following disclaimer.</span></div>
<div class="line"><a name="l00010"></a><span class="lineno">   10</span>&#160;<span class="comment"> *     * Redistributions in binary form must reproduce the above copyright</span></div>
<div class="line"><a name="l00011"></a><span class="lineno">   11</span>&#160;<span class="comment"> *       notice, this list of conditions and the following disclaimer in the</span></div>
<div class="line"><a name="l00012"></a><span class="lineno">   12</span>&#160;<span class="comment"> *       documentation and/or other materials provided with the distribution.</span></div>
<div class="line"><a name="l00013"></a><span class="lineno">   13</span>&#160;<span class="comment"> *     * Neither the name of the NVIDIA CORPORATION nor the</span></div>
<div class="line"><a name="l00014"></a><span class="lineno">   14</span>&#160;<span class="comment"> *       names of its contributors may be used to endorse or promote products</span></div>
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<div class="line"><a name="l00026"></a><span class="lineno">   26</span>&#160;<span class="comment"> * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.</span></div>
<div class="line"><a name="l00027"></a><span class="lineno">   27</span>&#160;<span class="comment"> *</span></div>
<div class="line"><a name="l00028"></a><span class="lineno">   28</span>&#160;<span class="comment"> ******************************************************************************/</span></div>
<div class="line"><a name="l00029"></a><span class="lineno">   29</span>&#160;</div>
<div class="line"><a name="l00035"></a><span class="lineno">   35</span>&#160;<span class="preprocessor">#pragma once</span></div>
<div class="line"><a name="l00036"></a><span class="lineno">   36</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l00037"></a><span class="lineno">   37</span>&#160;<span class="preprocessor">#include &lt;stdio.h&gt;</span></div>
<div class="line"><a name="l00038"></a><span class="lineno">   38</span>&#160;<span class="preprocessor">#include &lt;iterator&gt;</span></div>
<div class="line"><a name="l00039"></a><span class="lineno">   39</span>&#160;</div>
<div class="line"><a name="l00040"></a><span class="lineno">   40</span>&#160;<span class="preprocessor">#include &quot;block/block_radix_sort_upsweep_tiles.cuh&quot;</span></div>
<div class="line"><a name="l00041"></a><span class="lineno">   41</span>&#160;<span class="preprocessor">#include &quot;block/block_radix_sort_downsweep_tiles.cuh&quot;</span></div>
<div class="line"><a name="l00042"></a><span class="lineno">   42</span>&#160;<span class="preprocessor">#include &quot;block/block_scan_tiles.cuh&quot;</span></div>
<div class="line"><a name="l00043"></a><span class="lineno">   43</span>&#160;<span class="preprocessor">#include &quot;../grid/grid_even_share.cuh&quot;</span></div>
<div class="line"><a name="l00044"></a><span class="lineno">   44</span>&#160;<span class="preprocessor">#include &quot;../util_debug.cuh&quot;</span></div>
<div class="line"><a name="l00045"></a><span class="lineno">   45</span>&#160;<span class="preprocessor">#include &quot;../util_device.cuh&quot;</span></div>
<div class="line"><a name="l00046"></a><span class="lineno">   46</span>&#160;<span class="preprocessor">#include &quot;../util_namespace.cuh&quot;</span></div>
<div class="line"><a name="l00047"></a><span class="lineno">   47</span>&#160;</div>
<div class="line"><a name="l00049"></a><span class="lineno">   49</span>&#160;CUB_NS_PREFIX</div>
<div class="line"><a name="l00050"></a><span class="lineno">   50</span>&#160;</div>
<div class="line"><a name="l00052"></a><span class="lineno">   52</span>&#160;<span class="keyword">namespace </span>cub {</div>
<div class="line"><a name="l00053"></a><span class="lineno">   53</span>&#160;</div>
<div class="line"><a name="l00054"></a><span class="lineno">   54</span>&#160;<span class="preprocessor">#ifndef DOXYGEN_SHOULD_SKIP_THIS    // Do not document</span></div>
<div class="line"><a name="l00055"></a><span class="lineno">   55</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l00056"></a><span class="lineno">   56</span>&#160;</div>
<div class="line"><a name="l00057"></a><span class="lineno">   57</span>&#160;</div>
<div class="line"><a name="l00058"></a><span class="lineno">   58</span>&#160;</div>
<div class="line"><a name="l00059"></a><span class="lineno">   59</span>&#160;<span class="comment">/******************************************************************************</span></div>
<div class="line"><a name="l00060"></a><span class="lineno">   60</span>&#160;<span class="comment"> * Kernel entry points</span></div>
<div class="line"><a name="l00061"></a><span class="lineno">   61</span>&#160;<span class="comment"> *****************************************************************************/</span></div>
<div class="line"><a name="l00062"></a><span class="lineno">   62</span>&#160;</div>
<div class="line"><a name="l00066"></a><span class="lineno">   66</span>&#160;<span class="keyword">template</span> &lt;</div>
<div class="line"><a name="l00067"></a><span class="lineno">   67</span>&#160;    <span class="keyword">typename</span>                BlockRadixSortUpsweepTilesPolicy, </div>
<div class="line"><a name="l00068"></a><span class="lineno">   68</span>&#160;    <span class="keyword">typename</span>                Key,                            </div>
<div class="line"><a name="l00069"></a><span class="lineno">   69</span>&#160;    <span class="keyword">typename</span>                SizeT&gt;                          </div>
<div class="line"><a name="l00070"></a><span class="lineno">   70</span>&#160;__launch_bounds__ (<span class="keywordtype">int</span>(BlockRadixSortUpsweepTilesPolicy::BLOCK_THREADS), 1)</div>
<div class="line"><a name="l00071"></a><span class="lineno">   71</span>&#160;__global__ <span class="keywordtype">void</span> RadixSortUpsweepKernel(</div>
<div class="line"><a name="l00072"></a><span class="lineno">   72</span>&#160;    Key                     *d_keys,                        </div>
<div class="line"><a name="l00073"></a><span class="lineno">   73</span>&#160;    SizeT                   *d_spine,                       </div>
<div class="line"><a name="l00074"></a><span class="lineno">   74</span>&#160;    SizeT                   num_items,                      </div>
<div class="line"><a name="l00075"></a><span class="lineno">   75</span>&#160;    <span class="keywordtype">int</span>                     current_bit,                    </div>
<div class="line"><a name="l00076"></a><span class="lineno">   76</span>&#160;    <span class="keywordtype">bool</span>                    use_primary_bit_granularity,    </div>
<div class="line"><a name="l00077"></a><span class="lineno">   77</span>&#160;    <span class="keywordtype">bool</span>                    first_pass,                     </div>
<div class="line"><a name="l00078"></a><span class="lineno">   78</span>&#160;    GridEvenShare&lt;SizeT&gt;    even_share)                     </div>
<div class="line"><a name="l00079"></a><span class="lineno">   79</span>&#160;{</div>
<div class="line"><a name="l00080"></a><span class="lineno">   80</span>&#160;</div>
<div class="line"><a name="l00081"></a><span class="lineno">   81</span>&#160;    <span class="comment">// Alternate policy for when fewer bits remain</span></div>
<div class="line"><a name="l00082"></a><span class="lineno">   82</span>&#160;    <span class="keyword">typedef</span> <span class="keyword">typename</span> BlockRadixSortUpsweepTilesPolicy::AltPolicy AltPolicy;</div>
<div class="line"><a name="l00083"></a><span class="lineno">   83</span>&#160;</div>
<div class="line"><a name="l00084"></a><span class="lineno">   84</span>&#160;    <span class="comment">// Parameterize two versions of BlockRadixSortUpsweepTiles type for the current configuration</span></div>
<div class="line"><a name="l00085"></a><span class="lineno">   85</span>&#160;    <span class="keyword">typedef</span> BlockRadixSortUpsweepTiles&lt;BlockRadixSortUpsweepTilesPolicy, Key, SizeT&gt;    BlockRadixSortUpsweepTilesT;          <span class="comment">// Primary</span></div>
<div class="line"><a name="l00086"></a><span class="lineno">   86</span>&#160;    <span class="keyword">typedef</span> BlockRadixSortUpsweepTiles&lt;AltPolicy, Key, SizeT&gt;                           AltBlockRadixSortUpsweepTilesT;       <span class="comment">// Alternate (smaller bit granularity)</span></div>
<div class="line"><a name="l00087"></a><span class="lineno">   87</span>&#160;</div>
<div class="line"><a name="l00088"></a><span class="lineno">   88</span>&#160;    <span class="comment">// Shared memory storage</span></div>
<div class="line"><a name="l00089"></a><span class="lineno">   89</span>&#160;    __shared__ <span class="keyword">union</span></div>
<div class="line"><a name="l00090"></a><span class="lineno">   90</span>&#160;    {</div>
<div class="line"><a name="l00091"></a><span class="lineno">   91</span>&#160;        <span class="keyword">typename</span> BlockRadixSortUpsweepTilesT::TempStorage     pass_storage;</div>
<div class="line"><a name="l00092"></a><span class="lineno">   92</span>&#160;        <span class="keyword">typename</span> AltBlockRadixSortUpsweepTilesT::TempStorage  alt_pass_storage;</div>
<div class="line"><a name="l00093"></a><span class="lineno">   93</span>&#160;    } temp_storage;</div>
<div class="line"><a name="l00094"></a><span class="lineno">   94</span>&#160;</div>
<div class="line"><a name="l00095"></a><span class="lineno">   95</span>&#160;    <span class="comment">// Initialize even-share descriptor for this thread block</span></div>
<div class="line"><a name="l00096"></a><span class="lineno">   96</span>&#160;    even_share.BlockInit();</div>
<div class="line"><a name="l00097"></a><span class="lineno">   97</span>&#160;</div>
<div class="line"><a name="l00098"></a><span class="lineno">   98</span>&#160;    <span class="comment">// Process input tiles (each of the first RADIX_DIGITS threads will compute a count for that digit)</span></div>
<div class="line"><a name="l00099"></a><span class="lineno">   99</span>&#160;    <span class="keywordflow">if</span> (use_primary_bit_granularity)</div>
<div class="line"><a name="l00100"></a><span class="lineno">  100</span>&#160;    {</div>
<div class="line"><a name="l00101"></a><span class="lineno">  101</span>&#160;        <span class="comment">// Primary granularity</span></div>
<div class="line"><a name="l00102"></a><span class="lineno">  102</span>&#160;        SizeT bin_count;</div>
<div class="line"><a name="l00103"></a><span class="lineno">  103</span>&#160;        BlockRadixSortUpsweepTilesT(temp_storage.pass_storage, d_keys, current_bit).ProcessTiles(</div>
<div class="line"><a name="l00104"></a><span class="lineno">  104</span>&#160;            even_share.block_offset,</div>
<div class="line"><a name="l00105"></a><span class="lineno">  105</span>&#160;            even_share.block_oob,</div>
<div class="line"><a name="l00106"></a><span class="lineno">  106</span>&#160;            bin_count);</div>
<div class="line"><a name="l00107"></a><span class="lineno">  107</span>&#160;</div>
<div class="line"><a name="l00108"></a><span class="lineno">  108</span>&#160;        <span class="comment">// Write out digit counts (striped)</span></div>
<div class="line"><a name="l00109"></a><span class="lineno">  109</span>&#160;        <span class="keywordflow">if</span> (threadIdx.x &lt; BlockRadixSortUpsweepTilesT::RADIX_DIGITS)</div>
<div class="line"><a name="l00110"></a><span class="lineno">  110</span>&#160;        {</div>
<div class="line"><a name="l00111"></a><span class="lineno">  111</span>&#160;            d_spine[(gridDim.x * threadIdx.x) + blockIdx.x] = bin_count;</div>
<div class="line"><a name="l00112"></a><span class="lineno">  112</span>&#160;        }</div>
<div class="line"><a name="l00113"></a><span class="lineno">  113</span>&#160;    }</div>
<div class="line"><a name="l00114"></a><span class="lineno">  114</span>&#160;    <span class="keywordflow">else</span></div>
<div class="line"><a name="l00115"></a><span class="lineno">  115</span>&#160;    {</div>
<div class="line"><a name="l00116"></a><span class="lineno">  116</span>&#160;        <span class="comment">// Alternate granularity</span></div>
<div class="line"><a name="l00117"></a><span class="lineno">  117</span>&#160;        <span class="comment">// Process input tiles (each of the first RADIX_DIGITS threads will compute a count for that digit)</span></div>
<div class="line"><a name="l00118"></a><span class="lineno">  118</span>&#160;        SizeT bin_count;</div>
<div class="line"><a name="l00119"></a><span class="lineno">  119</span>&#160;        AltBlockRadixSortUpsweepTilesT(temp_storage.alt_pass_storage, d_keys, current_bit).ProcessTiles(</div>
<div class="line"><a name="l00120"></a><span class="lineno">  120</span>&#160;            even_share.block_offset,</div>
<div class="line"><a name="l00121"></a><span class="lineno">  121</span>&#160;            even_share.block_oob,</div>
<div class="line"><a name="l00122"></a><span class="lineno">  122</span>&#160;            bin_count);</div>
<div class="line"><a name="l00123"></a><span class="lineno">  123</span>&#160;</div>
<div class="line"><a name="l00124"></a><span class="lineno">  124</span>&#160;        <span class="comment">// Write out digit counts (striped)</span></div>
<div class="line"><a name="l00125"></a><span class="lineno">  125</span>&#160;        <span class="keywordflow">if</span> (threadIdx.x &lt; AltBlockRadixSortUpsweepTilesT::RADIX_DIGITS)</div>
<div class="line"><a name="l00126"></a><span class="lineno">  126</span>&#160;        {</div>
<div class="line"><a name="l00127"></a><span class="lineno">  127</span>&#160;            d_spine[(gridDim.x * threadIdx.x) + blockIdx.x] = bin_count;</div>
<div class="line"><a name="l00128"></a><span class="lineno">  128</span>&#160;        }</div>
<div class="line"><a name="l00129"></a><span class="lineno">  129</span>&#160;    }</div>
<div class="line"><a name="l00130"></a><span class="lineno">  130</span>&#160;}</div>
<div class="line"><a name="l00131"></a><span class="lineno">  131</span>&#160;</div>
<div class="line"><a name="l00132"></a><span class="lineno">  132</span>&#160;</div>
<div class="line"><a name="l00136"></a><span class="lineno">  136</span>&#160;<span class="keyword">template</span> &lt;</div>
<div class="line"><a name="l00137"></a><span class="lineno">  137</span>&#160;    <span class="keyword">typename</span>    BlockScanTilesPolicy,   </div>
<div class="line"><a name="l00138"></a><span class="lineno">  138</span>&#160;    <span class="keyword">typename</span>    SizeT&gt;                  </div>
<div class="line"><a name="l00139"></a><span class="lineno">  139</span>&#160;__launch_bounds__ (<span class="keywordtype">int</span>(BlockScanTilesPolicy::BLOCK_THREADS), 1)</div>
<div class="line"><a name="l00140"></a><span class="lineno">  140</span>&#160;__global__ <span class="keywordtype">void</span> RadixSortScanKernel(</div>
<div class="line"><a name="l00141"></a><span class="lineno">  141</span>&#160;    SizeT       *d_spine,               </div>
<div class="line"><a name="l00142"></a><span class="lineno">  142</span>&#160;    <span class="keywordtype">int</span>         num_counts)             </div>
<div class="line"><a name="l00143"></a><span class="lineno">  143</span>&#160;{</div>
<div class="line"><a name="l00144"></a><span class="lineno">  144</span>&#160;    <span class="comment">// Parameterize the BlockScanTiles type for the current configuration</span></div>
<div class="line"><a name="l00145"></a><span class="lineno">  145</span>&#160;    <span class="keyword">typedef</span> BlockScanTiles&lt;BlockScanTilesPolicy, SizeT*, SizeT*, cub::Sum, SizeT, SizeT&gt; BlockScanTilesT;</div>
<div class="line"><a name="l00146"></a><span class="lineno">  146</span>&#160;</div>
<div class="line"><a name="l00147"></a><span class="lineno">  147</span>&#160;    <span class="comment">// Shared memory storage</span></div>
<div class="line"><a name="l00148"></a><span class="lineno">  148</span>&#160;    __shared__ <span class="keyword">typename</span> BlockScanTilesT::TempStorage temp_storage;</div>
<div class="line"><a name="l00149"></a><span class="lineno">  149</span>&#160;</div>
<div class="line"><a name="l00150"></a><span class="lineno">  150</span>&#160;    <span class="comment">// Block scan instance</span></div>
<div class="line"><a name="l00151"></a><span class="lineno">  151</span>&#160;    BlockScanTilesT block_scan(temp_storage, d_spine, d_spine, <a class="code" href="structcub_1_1_sum.html" title="Default sum functor. ">cub::Sum</a>(), SizeT(0)) ;</div>
<div class="line"><a name="l00152"></a><span class="lineno">  152</span>&#160;</div>
<div class="line"><a name="l00153"></a><span class="lineno">  153</span>&#160;    <span class="comment">// Process full input tiles</span></div>
<div class="line"><a name="l00154"></a><span class="lineno">  154</span>&#160;    <span class="keywordtype">int</span> block_offset = 0;</div>
<div class="line"><a name="l00155"></a><span class="lineno">  155</span>&#160;    RunningBlockPrefixOp&lt;SizeT&gt; prefix_op;</div>
<div class="line"><a name="l00156"></a><span class="lineno">  156</span>&#160;    prefix_op.running_total = 0;</div>
<div class="line"><a name="l00157"></a><span class="lineno">  157</span>&#160;    <span class="keywordflow">while</span> (block_offset &lt; num_counts)</div>
<div class="line"><a name="l00158"></a><span class="lineno">  158</span>&#160;    {</div>
<div class="line"><a name="l00159"></a><span class="lineno">  159</span>&#160;        block_scan.ConsumeTile&lt;<span class="keyword">true</span>, <span class="keyword">false</span>&gt;(block_offset, prefix_op);</div>
<div class="line"><a name="l00160"></a><span class="lineno">  160</span>&#160;        block_offset += BlockScanTilesT::TILE_ITEMS;</div>
<div class="line"><a name="l00161"></a><span class="lineno">  161</span>&#160;    }</div>
<div class="line"><a name="l00162"></a><span class="lineno">  162</span>&#160;}</div>
<div class="line"><a name="l00163"></a><span class="lineno">  163</span>&#160;</div>
<div class="line"><a name="l00164"></a><span class="lineno">  164</span>&#160;</div>
<div class="line"><a name="l00168"></a><span class="lineno">  168</span>&#160;<span class="keyword">template</span> &lt;</div>
<div class="line"><a name="l00169"></a><span class="lineno">  169</span>&#160;    <span class="keyword">typename</span>                BlockRadixSortDownsweepTilesPolicy,   </div>
<div class="line"><a name="l00170"></a><span class="lineno">  170</span>&#160;    <span class="keyword">typename</span>                Key,                                </div>
<div class="line"><a name="l00171"></a><span class="lineno">  171</span>&#160;    <span class="keyword">typename</span>                Value,                              </div>
<div class="line"><a name="l00172"></a><span class="lineno">  172</span>&#160;    <span class="keyword">typename</span>                SizeT&gt;                              </div>
<div class="line"><a name="l00173"></a><span class="lineno">  173</span>&#160;__launch_bounds__ (<span class="keywordtype">int</span>(BlockRadixSortDownsweepTilesPolicy::BLOCK_THREADS))</div>
<div class="line"><a name="l00174"></a><span class="lineno">  174</span>&#160;__global__ <span class="keywordtype">void</span> RadixSortDownsweepKernel(</div>
<div class="line"><a name="l00175"></a><span class="lineno">  175</span>&#160;    Key                     *d_keys_in,                     </div>
<div class="line"><a name="l00176"></a><span class="lineno">  176</span>&#160;    Key                     *d_keys_out,                    </div>
<div class="line"><a name="l00177"></a><span class="lineno">  177</span>&#160;    Value                   *d_values_in,                   </div>
<div class="line"><a name="l00178"></a><span class="lineno">  178</span>&#160;    Value                   *d_values_out,                  </div>
<div class="line"><a name="l00179"></a><span class="lineno">  179</span>&#160;    SizeT                   *d_spine,                       </div>
<div class="line"><a name="l00180"></a><span class="lineno">  180</span>&#160;    SizeT                   num_items,                      </div>
<div class="line"><a name="l00181"></a><span class="lineno">  181</span>&#160;    <span class="keywordtype">int</span>                     current_bit,                    </div>
<div class="line"><a name="l00182"></a><span class="lineno">  182</span>&#160;    <span class="keywordtype">bool</span>                    use_primary_bit_granularity,    </div>
<div class="line"><a name="l00183"></a><span class="lineno">  183</span>&#160;    <span class="keywordtype">bool</span>                    first_pass,                     </div>
<div class="line"><a name="l00184"></a><span class="lineno">  184</span>&#160;    <span class="keywordtype">bool</span>                    last_pass,                      </div>
<div class="line"><a name="l00185"></a><span class="lineno">  185</span>&#160;    GridEvenShare&lt;SizeT&gt;    even_share)                     </div>
<div class="line"><a name="l00186"></a><span class="lineno">  186</span>&#160;{</div>
<div class="line"><a name="l00187"></a><span class="lineno">  187</span>&#160;</div>
<div class="line"><a name="l00188"></a><span class="lineno">  188</span>&#160;    <span class="comment">// Alternate policy for when fewer bits remain</span></div>
<div class="line"><a name="l00189"></a><span class="lineno">  189</span>&#160;    <span class="keyword">typedef</span> <span class="keyword">typename</span> BlockRadixSortDownsweepTilesPolicy::AltPolicy AltPolicy;</div>
<div class="line"><a name="l00190"></a><span class="lineno">  190</span>&#160;</div>
<div class="line"><a name="l00191"></a><span class="lineno">  191</span>&#160;    <span class="comment">// Parameterize two versions of BlockRadixSortDownsweepTiles type for the current configuration</span></div>
<div class="line"><a name="l00192"></a><span class="lineno">  192</span>&#160;    <span class="keyword">typedef</span> BlockRadixSortDownsweepTiles&lt;BlockRadixSortDownsweepTilesPolicy, Key, Value, SizeT&gt;     BlockRadixSortDownsweepTilesT;</div>
<div class="line"><a name="l00193"></a><span class="lineno">  193</span>&#160;    <span class="keyword">typedef</span> BlockRadixSortDownsweepTiles&lt;AltPolicy, Key, Value, SizeT&gt;                            AltBlockRadixSortDownsweepTilesT;</div>
<div class="line"><a name="l00194"></a><span class="lineno">  194</span>&#160;</div>
<div class="line"><a name="l00195"></a><span class="lineno">  195</span>&#160;    <span class="comment">// Shared memory storage</span></div>
<div class="line"><a name="l00196"></a><span class="lineno">  196</span>&#160;    __shared__ <span class="keyword">union</span></div>
<div class="line"><a name="l00197"></a><span class="lineno">  197</span>&#160;    {</div>
<div class="line"><a name="l00198"></a><span class="lineno">  198</span>&#160;        <span class="keyword">typename</span> BlockRadixSortDownsweepTilesT::TempStorage       pass_storage;</div>
<div class="line"><a name="l00199"></a><span class="lineno">  199</span>&#160;        <span class="keyword">typename</span> AltBlockRadixSortDownsweepTilesT::TempStorage    alt_pass_storage;</div>
<div class="line"><a name="l00200"></a><span class="lineno">  200</span>&#160;</div>
<div class="line"><a name="l00201"></a><span class="lineno">  201</span>&#160;    } temp_storage;</div>
<div class="line"><a name="l00202"></a><span class="lineno">  202</span>&#160;</div>
<div class="line"><a name="l00203"></a><span class="lineno">  203</span>&#160;    <span class="comment">// Initialize even-share descriptor for this thread block</span></div>
<div class="line"><a name="l00204"></a><span class="lineno">  204</span>&#160;    even_share.BlockInit();</div>
<div class="line"><a name="l00205"></a><span class="lineno">  205</span>&#160;</div>
<div class="line"><a name="l00206"></a><span class="lineno">  206</span>&#160;    <span class="keywordflow">if</span> (use_primary_bit_granularity)</div>
<div class="line"><a name="l00207"></a><span class="lineno">  207</span>&#160;    {</div>
<div class="line"><a name="l00208"></a><span class="lineno">  208</span>&#160;        <span class="comment">// Process input tiles</span></div>
<div class="line"><a name="l00209"></a><span class="lineno">  209</span>&#160;        BlockRadixSortDownsweepTilesT(temp_storage.pass_storage, num_items, d_spine, d_keys_in, d_keys_out, d_values_in, d_values_out, current_bit).ProcessTiles(</div>
<div class="line"><a name="l00210"></a><span class="lineno">  210</span>&#160;            even_share.block_offset,</div>
<div class="line"><a name="l00211"></a><span class="lineno">  211</span>&#160;            even_share.block_oob);</div>
<div class="line"><a name="l00212"></a><span class="lineno">  212</span>&#160;    }</div>
<div class="line"><a name="l00213"></a><span class="lineno">  213</span>&#160;    <span class="keywordflow">else</span></div>
<div class="line"><a name="l00214"></a><span class="lineno">  214</span>&#160;    {</div>
<div class="line"><a name="l00215"></a><span class="lineno">  215</span>&#160;        <span class="comment">// Process input tiles</span></div>
<div class="line"><a name="l00216"></a><span class="lineno">  216</span>&#160;        AltBlockRadixSortDownsweepTilesT(temp_storage.alt_pass_storage, num_items, d_spine, d_keys_in, d_keys_out, d_values_in, d_values_out, current_bit).ProcessTiles(</div>
<div class="line"><a name="l00217"></a><span class="lineno">  217</span>&#160;            even_share.block_offset,</div>
<div class="line"><a name="l00218"></a><span class="lineno">  218</span>&#160;            even_share.block_oob);</div>
<div class="line"><a name="l00219"></a><span class="lineno">  219</span>&#160;    }</div>
<div class="line"><a name="l00220"></a><span class="lineno">  220</span>&#160;}</div>
<div class="line"><a name="l00221"></a><span class="lineno">  221</span>&#160;</div>
<div class="line"><a name="l00222"></a><span class="lineno">  222</span>&#160;</div>
<div class="line"><a name="l00223"></a><span class="lineno">  223</span>&#160;<span class="preprocessor">#endif // DOXYGEN_SHOULD_SKIP_THIS</span></div>
<div class="line"><a name="l00224"></a><span class="lineno">  224</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l00225"></a><span class="lineno">  225</span>&#160;</div>
<div class="line"><a name="l00226"></a><span class="lineno">  226</span>&#160;</div>
<div class="line"><a name="l00227"></a><span class="lineno">  227</span>&#160;</div>
<div class="line"><a name="l00228"></a><span class="lineno">  228</span>&#160;</div>
<div class="line"><a name="l00229"></a><span class="lineno">  229</span>&#160;<span class="comment">/******************************************************************************</span></div>
<div class="line"><a name="l00230"></a><span class="lineno">  230</span>&#160;<span class="comment"> * DeviceRadixSort</span></div>
<div class="line"><a name="l00231"></a><span class="lineno">  231</span>&#160;<span class="comment"> *****************************************************************************/</span></div>
<div class="line"><a name="l00232"></a><span class="lineno">  232</span>&#160;</div>
<div class="line"><a name="l00261"></a><span class="lineno"><a class="code" href="structcub_1_1_device_radix_sort.html">  261</a></span>&#160;<span class="keyword">struct </span><a class="code" href="structcub_1_1_device_radix_sort.html" title="DeviceRadixSort provides operations for computing a device-wide, parallel radix sort across data item...">DeviceRadixSort</a></div>
<div class="line"><a name="l00262"></a><span class="lineno">  262</span>&#160;{</div>
<div class="line"><a name="l00263"></a><span class="lineno">  263</span>&#160;<span class="preprocessor">    #ifndef DOXYGEN_SHOULD_SKIP_THIS    // Do not document</span></div>
<div class="line"><a name="l00264"></a><span class="lineno">  264</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l00265"></a><span class="lineno">  265</span>&#160;</div>
<div class="line"><a name="l00266"></a><span class="lineno">  266</span>&#160;    <span class="comment">/******************************************************************************</span></div>
<div class="line"><a name="l00267"></a><span class="lineno">  267</span>&#160;<span class="comment">     * Constants and typedefs</span></div>
<div class="line"><a name="l00268"></a><span class="lineno">  268</span>&#160;<span class="comment">     ******************************************************************************/</span></div>
<div class="line"><a name="l00269"></a><span class="lineno">  269</span>&#160;</div>
<div class="line"><a name="l00271"></a><span class="lineno">  271</span>&#160;    <span class="keyword">struct </span>KernelDispachParams</div>
<div class="line"><a name="l00272"></a><span class="lineno">  272</span>&#160;    {</div>
<div class="line"><a name="l00273"></a><span class="lineno">  273</span>&#160;        <span class="keywordtype">int</span>                     block_threads;</div>
<div class="line"><a name="l00274"></a><span class="lineno">  274</span>&#160;        <span class="keywordtype">int</span>                     items_per_thread;</div>
<div class="line"><a name="l00275"></a><span class="lineno">  275</span>&#160;        cudaSharedMemConfig     smem_config;</div>
<div class="line"><a name="l00276"></a><span class="lineno">  276</span>&#160;        <span class="keywordtype">int</span>                     radix_bits;</div>
<div class="line"><a name="l00277"></a><span class="lineno">  277</span>&#160;        <span class="keywordtype">int</span>                     alt_radix_bits;</div>
<div class="line"><a name="l00278"></a><span class="lineno">  278</span>&#160;        <span class="keywordtype">int</span>                     subscription_factor;</div>
<div class="line"><a name="l00279"></a><span class="lineno">  279</span>&#160;        <span class="keywordtype">int</span>                     tile_size;</div>
<div class="line"><a name="l00280"></a><span class="lineno">  280</span>&#160;</div>
<div class="line"><a name="l00281"></a><span class="lineno">  281</span>&#160;        <span class="keyword">template</span> &lt;<span class="keyword">typename</span> SortBlockPolicy&gt;</div>
<div class="line"><a name="l00282"></a><span class="lineno">  282</span>&#160;        __host__ __device__ __forceinline__</div>
<div class="line"><a name="l00283"></a><span class="lineno">  283</span>&#160;        <span class="keywordtype">void</span> InitUpsweepPolicy(<span class="keywordtype">int</span> subscription_factor = 1)</div>
<div class="line"><a name="l00284"></a><span class="lineno">  284</span>&#160;        {</div>
<div class="line"><a name="l00285"></a><span class="lineno">  285</span>&#160;            block_threads               = SortBlockPolicy::BLOCK_THREADS;</div>
<div class="line"><a name="l00286"></a><span class="lineno">  286</span>&#160;            items_per_thread            = SortBlockPolicy::ITEMS_PER_THREAD;</div>
<div class="line"><a name="l00287"></a><span class="lineno">  287</span>&#160;            radix_bits                  = SortBlockPolicy::RADIX_BITS;</div>
<div class="line"><a name="l00288"></a><span class="lineno">  288</span>&#160;            alt_radix_bits              = SortBlockPolicy::AltPolicy::RADIX_BITS;</div>
<div class="line"><a name="l00289"></a><span class="lineno">  289</span>&#160;            smem_config                 = cudaSharedMemBankSizeFourByte;</div>
<div class="line"><a name="l00290"></a><span class="lineno">  290</span>&#160;            this-&gt;subscription_factor   = subscription_factor;</div>
<div class="line"><a name="l00291"></a><span class="lineno">  291</span>&#160;            tile_size                   = block_threads * items_per_thread;</div>
<div class="line"><a name="l00292"></a><span class="lineno">  292</span>&#160;        }</div>
<div class="line"><a name="l00293"></a><span class="lineno">  293</span>&#160;</div>
<div class="line"><a name="l00294"></a><span class="lineno">  294</span>&#160;        <span class="keyword">template</span> &lt;<span class="keyword">typename</span> ScanBlockPolicy&gt;</div>
<div class="line"><a name="l00295"></a><span class="lineno">  295</span>&#160;        __host__ __device__ __forceinline__</div>
<div class="line"><a name="l00296"></a><span class="lineno">  296</span>&#160;        <span class="keywordtype">void</span> InitScanPolicy()</div>
<div class="line"><a name="l00297"></a><span class="lineno">  297</span>&#160;        {</div>
<div class="line"><a name="l00298"></a><span class="lineno">  298</span>&#160;            block_threads               = ScanBlockPolicy::BLOCK_THREADS;</div>
<div class="line"><a name="l00299"></a><span class="lineno">  299</span>&#160;            items_per_thread            = ScanBlockPolicy::ITEMS_PER_THREAD;</div>
<div class="line"><a name="l00300"></a><span class="lineno">  300</span>&#160;            radix_bits                  = 0;</div>
<div class="line"><a name="l00301"></a><span class="lineno">  301</span>&#160;            alt_radix_bits              = 0;</div>
<div class="line"><a name="l00302"></a><span class="lineno">  302</span>&#160;            smem_config                 = cudaSharedMemBankSizeFourByte;</div>
<div class="line"><a name="l00303"></a><span class="lineno">  303</span>&#160;            subscription_factor         = 0;</div>
<div class="line"><a name="l00304"></a><span class="lineno">  304</span>&#160;            tile_size                   = block_threads * items_per_thread;</div>
<div class="line"><a name="l00305"></a><span class="lineno">  305</span>&#160;        }</div>
<div class="line"><a name="l00306"></a><span class="lineno">  306</span>&#160;</div>
<div class="line"><a name="l00307"></a><span class="lineno">  307</span>&#160;        <span class="keyword">template</span> &lt;<span class="keyword">typename</span> SortBlockPolicy&gt;</div>
<div class="line"><a name="l00308"></a><span class="lineno">  308</span>&#160;        __host__ __device__ __forceinline__</div>
<div class="line"><a name="l00309"></a><span class="lineno">  309</span>&#160;        <span class="keywordtype">void</span> InitDownsweepPolicy(<span class="keywordtype">int</span> subscription_factor = 1)</div>
<div class="line"><a name="l00310"></a><span class="lineno">  310</span>&#160;        {</div>
<div class="line"><a name="l00311"></a><span class="lineno">  311</span>&#160;            block_threads               = SortBlockPolicy::BLOCK_THREADS;</div>
<div class="line"><a name="l00312"></a><span class="lineno">  312</span>&#160;            items_per_thread            = SortBlockPolicy::ITEMS_PER_THREAD;</div>
<div class="line"><a name="l00313"></a><span class="lineno">  313</span>&#160;            radix_bits                  = SortBlockPolicy::RADIX_BITS;</div>
<div class="line"><a name="l00314"></a><span class="lineno">  314</span>&#160;            alt_radix_bits              = SortBlockPolicy::AltPolicy::RADIX_BITS;</div>
<div class="line"><a name="l00315"></a><span class="lineno">  315</span>&#160;            smem_config                 = SortBlockPolicy::SMEM_CONFIG;</div>
<div class="line"><a name="l00316"></a><span class="lineno">  316</span>&#160;            this-&gt;subscription_factor   = subscription_factor;</div>
<div class="line"><a name="l00317"></a><span class="lineno">  317</span>&#160;            tile_size                   = block_threads * items_per_thread;</div>
<div class="line"><a name="l00318"></a><span class="lineno">  318</span>&#160;        }</div>
<div class="line"><a name="l00319"></a><span class="lineno">  319</span>&#160;    };</div>
<div class="line"><a name="l00320"></a><span class="lineno">  320</span>&#160;</div>
<div class="line"><a name="l00321"></a><span class="lineno">  321</span>&#160;</div>
<div class="line"><a name="l00322"></a><span class="lineno">  322</span>&#160;</div>
<div class="line"><a name="l00323"></a><span class="lineno">  323</span>&#160;    <span class="comment">/******************************************************************************</span></div>
<div class="line"><a name="l00324"></a><span class="lineno">  324</span>&#160;<span class="comment">     * Tuning policies</span></div>
<div class="line"><a name="l00325"></a><span class="lineno">  325</span>&#160;<span class="comment">     ******************************************************************************/</span></div>
<div class="line"><a name="l00326"></a><span class="lineno">  326</span>&#160;</div>
<div class="line"><a name="l00328"></a><span class="lineno">  328</span>&#160;    <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Key, <span class="keyword">typename</span> Value, <span class="keyword">typename</span> SizeT, <span class="keywordtype">int</span> ARCH&gt;</div>
<div class="line"><a name="l00329"></a><span class="lineno">  329</span>&#160;    <span class="keyword">struct </span>TunedPolicies;</div>
<div class="line"><a name="l00330"></a><span class="lineno">  330</span>&#160;</div>
<div class="line"><a name="l00332"></a><span class="lineno">  332</span>&#160;    <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Key, <span class="keyword">typename</span> Value, <span class="keyword">typename</span> SizeT&gt;</div>
<div class="line"><a name="l00333"></a><span class="lineno">  333</span>&#160;    <span class="keyword">struct </span>TunedPolicies&lt;Key, Value, SizeT, 350&gt;</div>
<div class="line"><a name="l00334"></a><span class="lineno">  334</span>&#160;    {</div>
<div class="line"><a name="l00335"></a><span class="lineno">  335</span>&#160;        <span class="keyword">enum</span> {</div>
<div class="line"><a name="l00336"></a><span class="lineno">  336</span>&#160;            KEYS_ONLY       = (<a class="code" href="structcub_1_1_equals.html" title="Type equality test. ">Equals&lt;Value, NullType&gt;::VALUE</a>),</div>
<div class="line"><a name="l00337"></a><span class="lineno">  337</span>&#160;            SCALE_FACTOR    = (CUB_MAX(<span class="keyword">sizeof</span>(Key), <span class="keyword">sizeof</span>(Value)) + 3) / 4,</div>
<div class="line"><a name="l00338"></a><span class="lineno">  338</span>&#160;            RADIX_BITS      = 5,</div>
<div class="line"><a name="l00339"></a><span class="lineno">  339</span>&#160;        };</div>
<div class="line"><a name="l00340"></a><span class="lineno">  340</span>&#160;</div>
<div class="line"><a name="l00341"></a><span class="lineno">  341</span>&#160;        <span class="comment">// UpsweepPolicy</span></div>
<div class="line"><a name="l00342"></a><span class="lineno">  342</span>&#160;        <span class="keyword">typedef</span> BlockRadixSortUpsweepTilesPolicy &lt;64,     CUB_MAX(1, 18 / SCALE_FACTOR), <a class="code" href="group___io_module.html#gga023420f30fec7d4b187fc98f4fd2a55da0217758d7be24e5fd450d1d49aec36b8" title="Cache as texture. ">LOAD_LDG</a>, RADIX_BITS&gt; UpsweepPolicyKeys;</div>
<div class="line"><a name="l00343"></a><span class="lineno">  343</span>&#160;        <span class="keyword">typedef</span> BlockRadixSortUpsweepTilesPolicy &lt;128,    CUB_MAX(1, 15 / SCALE_FACTOR), <a class="code" href="group___io_module.html#gga023420f30fec7d4b187fc98f4fd2a55da0217758d7be24e5fd450d1d49aec36b8" title="Cache as texture. ">LOAD_LDG</a>, RADIX_BITS&gt; UpsweepPolicyPairs;</div>
<div class="line"><a name="l00344"></a><span class="lineno">  344</span>&#160;        <span class="keyword">typedef</span> <span class="keyword">typename</span> <a class="code" href="structcub_1_1_if.html#af689e9527f56372e66413b65581ded8e" title="Conditional type result. ">If&lt;KEYS_ONLY, UpsweepPolicyKeys, UpsweepPolicyPairs&gt;::Type</a> UpsweepPolicy;</div>
<div class="line"><a name="l00345"></a><span class="lineno">  345</span>&#160;<span class="comment">/*</span></div>
<div class="line"><a name="l00346"></a><span class="lineno">  346</span>&#160;<span class="comment">        // 4bit</span></div>
<div class="line"><a name="l00347"></a><span class="lineno">  347</span>&#160;<span class="comment">        typedef BlockRadixSortUpsweepTilesPolicy &lt;128, 15, LOAD_LDG, RADIX_BITS&gt; UpsweepPolicyKeys;</span></div>
<div class="line"><a name="l00348"></a><span class="lineno">  348</span>&#160;<span class="comment">        typedef BlockRadixSortUpsweepTilesPolicy &lt;256, 13, LOAD_LDG, RADIX_BITS&gt; UpsweepPolicyPairs;</span></div>
<div class="line"><a name="l00349"></a><span class="lineno">  349</span>&#160;<span class="comment">*/</span></div>
<div class="line"><a name="l00350"></a><span class="lineno">  350</span>&#160;        <span class="comment">// ScanPolicy</span></div>
<div class="line"><a name="l00351"></a><span class="lineno">  351</span>&#160;        <span class="keyword">typedef</span> BlockScanTilesPolicy &lt;1024, 4, BLOCK_LOAD_VECTORIZE, false, LOAD_DEFAULT, BLOCK_STORE_VECTORIZE, false, BLOCK_SCAN_RAKING_MEMOIZE&gt; ScanPolicy;</div>
<div class="line"><a name="l00352"></a><span class="lineno">  352</span>&#160;</div>
<div class="line"><a name="l00353"></a><span class="lineno">  353</span>&#160;        <span class="comment">// DownsweepPolicy</span></div>
<div class="line"><a name="l00354"></a><span class="lineno">  354</span>&#160;        <span class="keyword">typedef</span> BlockRadixSortDownsweepTilesPolicy &lt;64,   CUB_MAX(1, 18 / SCALE_FACTOR), <a class="code" href="namespacecub.html#a9d7e37497fdd99864c57adecda710401a2d4d8900d7e697e9dac4062e97d3d835">BLOCK_LOAD_DIRECT</a>, <a class="code" href="group___io_module.html#gga023420f30fec7d4b187fc98f4fd2a55da0217758d7be24e5fd450d1d49aec36b8" title="Cache as texture. ">LOAD_LDG</a>, <span class="keyword">false</span>, <span class="keyword">true</span>, <a class="code" href="namespacecub.html#abec44bba36037c547e7e84906d0d23aba7f51e58246eb53f1a97bd1bc8c0f400f">BLOCK_SCAN_WARP_SCANS</a>, RADIX_SORT_SCATTER_TWO_PHASE, cudaSharedMemBankSizeEightByte, RADIX_BITS&gt; DownsweepPolicyKeys;</div>
<div class="line"><a name="l00355"></a><span class="lineno">  355</span>&#160;        <span class="keyword">typedef</span> BlockRadixSortDownsweepTilesPolicy &lt;128,  CUB_MAX(1, 15 / SCALE_FACTOR), <a class="code" href="namespacecub.html#a9d7e37497fdd99864c57adecda710401a2d4d8900d7e697e9dac4062e97d3d835">BLOCK_LOAD_DIRECT</a>, <a class="code" href="group___io_module.html#gga023420f30fec7d4b187fc98f4fd2a55da0217758d7be24e5fd450d1d49aec36b8" title="Cache as texture. ">LOAD_LDG</a>, <span class="keyword">false</span>, <span class="keyword">true</span>, <a class="code" href="namespacecub.html#abec44bba36037c547e7e84906d0d23aba7f51e58246eb53f1a97bd1bc8c0f400f">BLOCK_SCAN_WARP_SCANS</a>, RADIX_SORT_SCATTER_TWO_PHASE, cudaSharedMemBankSizeEightByte, RADIX_BITS&gt; DownsweepPolicyPairs;</div>
<div class="line"><a name="l00356"></a><span class="lineno">  356</span>&#160;        <span class="keyword">typedef</span> <span class="keyword">typename</span> <a class="code" href="structcub_1_1_if.html#af689e9527f56372e66413b65581ded8e" title="Conditional type result. ">If&lt;KEYS_ONLY, DownsweepPolicyKeys, DownsweepPolicyPairs&gt;::Type</a> DownsweepPolicy;</div>
<div class="line"><a name="l00357"></a><span class="lineno">  357</span>&#160;</div>
<div class="line"><a name="l00358"></a><span class="lineno">  358</span>&#160;<span class="comment">/*</span></div>
<div class="line"><a name="l00359"></a><span class="lineno">  359</span>&#160;<span class="comment">        // 4bit</span></div>
<div class="line"><a name="l00360"></a><span class="lineno">  360</span>&#160;<span class="comment">        typedef BlockRadixSortDownsweepTilesPolicy &lt;128, 15, BLOCK_LOAD_DIRECT, LOAD_LDG, false, true, BLOCK_SCAN_WARP_SCANS, RADIX_SORT_SCATTER_TWO_PHASE, cudaSharedMemBankSizeEightByte, RADIX_BITS&gt; DownsweepPolicyKeys;</span></div>
<div class="line"><a name="l00361"></a><span class="lineno">  361</span>&#160;<span class="comment">        typedef BlockRadixSortDownsweepTilesPolicy &lt;256, 13, BLOCK_LOAD_DIRECT, LOAD_LDG, false, true, BLOCK_SCAN_WARP_SCANS, RADIX_SORT_SCATTER_TWO_PHASE, cudaSharedMemBankSizeEightByte, RADIX_BITS&gt; DownsweepPolicyPairs;</span></div>
<div class="line"><a name="l00362"></a><span class="lineno">  362</span>&#160;<span class="comment">*/</span></div>
<div class="line"><a name="l00363"></a><span class="lineno">  363</span>&#160;        <span class="keyword">enum</span> { SUBSCRIPTION_FACTOR = 7 };</div>
<div class="line"><a name="l00364"></a><span class="lineno">  364</span>&#160;    };</div>
<div class="line"><a name="l00365"></a><span class="lineno">  365</span>&#160;</div>
<div class="line"><a name="l00366"></a><span class="lineno">  366</span>&#160;</div>
<div class="line"><a name="l00368"></a><span class="lineno">  368</span>&#160;    <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Key, <span class="keyword">typename</span> Value, <span class="keyword">typename</span> SizeT&gt;</div>
<div class="line"><a name="l00369"></a><span class="lineno">  369</span>&#160;    <span class="keyword">struct </span>TunedPolicies&lt;Key, Value, SizeT, 200&gt;</div>
<div class="line"><a name="l00370"></a><span class="lineno">  370</span>&#160;    {</div>
<div class="line"><a name="l00371"></a><span class="lineno">  371</span>&#160;        <span class="keyword">enum</span> {</div>
<div class="line"><a name="l00372"></a><span class="lineno">  372</span>&#160;            KEYS_ONLY       = (<a class="code" href="structcub_1_1_equals.html" title="Type equality test. ">Equals&lt;Value, NullType&gt;::VALUE</a>),</div>
<div class="line"><a name="l00373"></a><span class="lineno">  373</span>&#160;            SCALE_FACTOR    = (CUB_MAX(<span class="keyword">sizeof</span>(Key), <span class="keyword">sizeof</span>(Value)) + 3) / 4,</div>
<div class="line"><a name="l00374"></a><span class="lineno">  374</span>&#160;            RADIX_BITS      = 5,</div>
<div class="line"><a name="l00375"></a><span class="lineno">  375</span>&#160;        };</div>
<div class="line"><a name="l00376"></a><span class="lineno">  376</span>&#160;</div>
<div class="line"><a name="l00377"></a><span class="lineno">  377</span>&#160;        <span class="comment">// UpsweepPolicy</span></div>
<div class="line"><a name="l00378"></a><span class="lineno">  378</span>&#160;        <span class="keyword">typedef</span> BlockRadixSortUpsweepTilesPolicy &lt;64, CUB_MAX(1, 18 / SCALE_FACTOR), <a class="code" href="group___io_module.html#gga023420f30fec7d4b187fc98f4fd2a55daee682a9988eceaefd9a53a7ef92fe6e2" title="Default (no modifier) ">LOAD_DEFAULT</a>, RADIX_BITS&gt; UpsweepPolicyKeys;</div>
<div class="line"><a name="l00379"></a><span class="lineno">  379</span>&#160;        <span class="keyword">typedef</span> BlockRadixSortUpsweepTilesPolicy &lt;128, CUB_MAX(1, 13 / SCALE_FACTOR), <a class="code" href="group___io_module.html#gga023420f30fec7d4b187fc98f4fd2a55daee682a9988eceaefd9a53a7ef92fe6e2" title="Default (no modifier) ">LOAD_DEFAULT</a>, RADIX_BITS&gt; UpsweepPolicyPairs;</div>
<div class="line"><a name="l00380"></a><span class="lineno">  380</span>&#160;        <span class="keyword">typedef</span> <span class="keyword">typename</span> <a class="code" href="structcub_1_1_if.html#af689e9527f56372e66413b65581ded8e" title="Conditional type result. ">If&lt;KEYS_ONLY, UpsweepPolicyKeys, UpsweepPolicyPairs&gt;::Type</a> UpsweepPolicy;</div>
<div class="line"><a name="l00381"></a><span class="lineno">  381</span>&#160;</div>
<div class="line"><a name="l00382"></a><span class="lineno">  382</span>&#160;        <span class="comment">// ScanPolicy</span></div>
<div class="line"><a name="l00383"></a><span class="lineno">  383</span>&#160;        <span class="keyword">typedef</span> BlockScanTilesPolicy &lt;512, 4, BLOCK_LOAD_VECTORIZE, false, LOAD_DEFAULT, BLOCK_STORE_VECTORIZE, false, BLOCK_SCAN_RAKING_MEMOIZE&gt; ScanPolicy;</div>
<div class="line"><a name="l00384"></a><span class="lineno">  384</span>&#160;</div>
<div class="line"><a name="l00385"></a><span class="lineno">  385</span>&#160;        <span class="comment">// DownsweepPolicy</span></div>
<div class="line"><a name="l00386"></a><span class="lineno">  386</span>&#160;        <span class="keyword">typedef</span> BlockRadixSortDownsweepTilesPolicy &lt;64, CUB_MAX(1, 18 / SCALE_FACTOR), <a class="code" href="namespacecub.html#a9d7e37497fdd99864c57adecda710401aba21066c09e6c6ebcf08c7e86216eb1f">BLOCK_LOAD_WARP_TRANSPOSE</a>, <a class="code" href="group___io_module.html#gga023420f30fec7d4b187fc98f4fd2a55daee682a9988eceaefd9a53a7ef92fe6e2" title="Default (no modifier) ">LOAD_DEFAULT</a>, <span class="keyword">false</span>, <span class="keyword">false</span>, <a class="code" href="namespacecub.html#abec44bba36037c547e7e84906d0d23aba7f51e58246eb53f1a97bd1bc8c0f400f">BLOCK_SCAN_WARP_SCANS</a>, RADIX_SORT_SCATTER_TWO_PHASE, cudaSharedMemBankSizeFourByte, RADIX_BITS&gt; DownsweepPolicyKeys;</div>
<div class="line"><a name="l00387"></a><span class="lineno">  387</span>&#160;        <span class="keyword">typedef</span> BlockRadixSortDownsweepTilesPolicy &lt;128, CUB_MAX(1, 13 / SCALE_FACTOR), <a class="code" href="namespacecub.html#a9d7e37497fdd99864c57adecda710401aba21066c09e6c6ebcf08c7e86216eb1f">BLOCK_LOAD_WARP_TRANSPOSE</a>, <a class="code" href="group___io_module.html#gga023420f30fec7d4b187fc98f4fd2a55daee682a9988eceaefd9a53a7ef92fe6e2" title="Default (no modifier) ">LOAD_DEFAULT</a>, <span class="keyword">false</span>, <span class="keyword">false</span>, <a class="code" href="namespacecub.html#abec44bba36037c547e7e84906d0d23aba7f51e58246eb53f1a97bd1bc8c0f400f">BLOCK_SCAN_WARP_SCANS</a>, RADIX_SORT_SCATTER_TWO_PHASE, cudaSharedMemBankSizeFourByte, RADIX_BITS&gt; DownsweepPolicyPairs;</div>
<div class="line"><a name="l00388"></a><span class="lineno">  388</span>&#160;        <span class="keyword">typedef</span> <span class="keyword">typename</span> <a class="code" href="structcub_1_1_if.html#af689e9527f56372e66413b65581ded8e" title="Conditional type result. ">If&lt;KEYS_ONLY, DownsweepPolicyKeys, DownsweepPolicyPairs&gt;::Type</a> DownsweepPolicy;</div>
<div class="line"><a name="l00389"></a><span class="lineno">  389</span>&#160;</div>
<div class="line"><a name="l00390"></a><span class="lineno">  390</span>&#160;        <span class="keyword">enum</span> { SUBSCRIPTION_FACTOR = 3 };</div>
<div class="line"><a name="l00391"></a><span class="lineno">  391</span>&#160;    };</div>
<div class="line"><a name="l00392"></a><span class="lineno">  392</span>&#160;</div>
<div class="line"><a name="l00393"></a><span class="lineno">  393</span>&#160;</div>
<div class="line"><a name="l00395"></a><span class="lineno">  395</span>&#160;    <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Key, <span class="keyword">typename</span> Value, <span class="keyword">typename</span> SizeT&gt;</div>
<div class="line"><a name="l00396"></a><span class="lineno">  396</span>&#160;    <span class="keyword">struct </span>TunedPolicies&lt;Key, Value, SizeT, 100&gt;</div>
<div class="line"><a name="l00397"></a><span class="lineno">  397</span>&#160;    {</div>
<div class="line"><a name="l00398"></a><span class="lineno">  398</span>&#160;        <span class="keyword">enum</span> {</div>
<div class="line"><a name="l00399"></a><span class="lineno">  399</span>&#160;            RADIX_BITS = 4,</div>
<div class="line"><a name="l00400"></a><span class="lineno">  400</span>&#160;        };</div>
<div class="line"><a name="l00401"></a><span class="lineno">  401</span>&#160;</div>
<div class="line"><a name="l00402"></a><span class="lineno">  402</span>&#160;        <span class="comment">// UpsweepPolicy</span></div>
<div class="line"><a name="l00403"></a><span class="lineno">  403</span>&#160;        <span class="keyword">typedef</span> BlockRadixSortUpsweepTilesPolicy &lt;64, 9, LOAD_DEFAULT, RADIX_BITS&gt; UpsweepPolicy;</div>
<div class="line"><a name="l00404"></a><span class="lineno">  404</span>&#160;</div>
<div class="line"><a name="l00405"></a><span class="lineno">  405</span>&#160;        <span class="comment">// ScanPolicy</span></div>
<div class="line"><a name="l00406"></a><span class="lineno">  406</span>&#160;        <span class="keyword">typedef</span> BlockScanTilesPolicy &lt;256, 4, BLOCK_LOAD_VECTORIZE, false, LOAD_DEFAULT, BLOCK_STORE_VECTORIZE, false, BLOCK_SCAN_RAKING_MEMOIZE&gt; ScanPolicy;</div>
<div class="line"><a name="l00407"></a><span class="lineno">  407</span>&#160;</div>
<div class="line"><a name="l00408"></a><span class="lineno">  408</span>&#160;        <span class="comment">// DownsweepPolicy</span></div>
<div class="line"><a name="l00409"></a><span class="lineno">  409</span>&#160;        <span class="keyword">typedef</span> BlockRadixSortDownsweepTilesPolicy &lt;64, 9, BLOCK_LOAD_WARP_TRANSPOSE, LOAD_DEFAULT, false, false, BLOCK_SCAN_WARP_SCANS, RADIX_SORT_SCATTER_TWO_PHASE, cudaSharedMemBankSizeFourByte, RADIX_BITS&gt; DownsweepPolicy;</div>
<div class="line"><a name="l00410"></a><span class="lineno">  410</span>&#160;</div>
<div class="line"><a name="l00411"></a><span class="lineno">  411</span>&#160;        <span class="keyword">enum</span> { SUBSCRIPTION_FACTOR = 3 };</div>
<div class="line"><a name="l00412"></a><span class="lineno">  412</span>&#160;    };</div>
<div class="line"><a name="l00413"></a><span class="lineno">  413</span>&#160;</div>
<div class="line"><a name="l00414"></a><span class="lineno">  414</span>&#160;</div>
<div class="line"><a name="l00415"></a><span class="lineno">  415</span>&#160;</div>
<div class="line"><a name="l00416"></a><span class="lineno">  416</span>&#160;    <span class="comment">/******************************************************************************</span></div>
<div class="line"><a name="l00417"></a><span class="lineno">  417</span>&#160;<span class="comment">     * Default policy initializer</span></div>
<div class="line"><a name="l00418"></a><span class="lineno">  418</span>&#160;<span class="comment">     ******************************************************************************/</span></div>
<div class="line"><a name="l00419"></a><span class="lineno">  419</span>&#160;</div>
<div class="line"><a name="l00421"></a><span class="lineno">  421</span>&#160;    <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Key, <span class="keyword">typename</span> Value, <span class="keyword">typename</span> SizeT&gt;</div>
<div class="line"><a name="l00422"></a><span class="lineno">  422</span>&#160;    <span class="keyword">struct </span>PtxDefaultPolicies</div>
<div class="line"><a name="l00423"></a><span class="lineno">  423</span>&#160;    {</div>
<div class="line"><a name="l00424"></a><span class="lineno">  424</span>&#160;</div>
<div class="line"><a name="l00425"></a><span class="lineno">  425</span>&#160;        <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">int</span> PTX_TUNE_ARCH =   (<a class="code" href="group___util_module.html#ga76769ce380739b38e0bd00f57e0dbe4f" title="CUB_PTX_ARCH reflects the PTX version targeted by the active compiler pass (or zero during the host p...">CUB_PTX_ARCH</a> &gt;= 350) ?</div>
<div class="line"><a name="l00426"></a><span class="lineno">  426</span>&#160;                                                350 :</div>
<div class="line"><a name="l00427"></a><span class="lineno">  427</span>&#160;                                                (<a class="code" href="group___util_module.html#ga76769ce380739b38e0bd00f57e0dbe4f" title="CUB_PTX_ARCH reflects the PTX version targeted by the active compiler pass (or zero during the host p...">CUB_PTX_ARCH</a> &gt;= 200) ?</div>
<div class="line"><a name="l00428"></a><span class="lineno">  428</span>&#160;                                                    200 :</div>
<div class="line"><a name="l00429"></a><span class="lineno">  429</span>&#160;                                                    100;</div>
<div class="line"><a name="l00430"></a><span class="lineno">  430</span>&#160;</div>
<div class="line"><a name="l00431"></a><span class="lineno">  431</span>&#160;        <span class="comment">// Tuned policy set for the current PTX compiler pass</span></div>
<div class="line"><a name="l00432"></a><span class="lineno">  432</span>&#160;        <span class="keyword">typedef</span> TunedPolicies&lt;Key, Value, SizeT, PTX_TUNE_ARCH&gt; PtxTunedPolicies;</div>
<div class="line"><a name="l00433"></a><span class="lineno">  433</span>&#160;</div>
<div class="line"><a name="l00434"></a><span class="lineno">  434</span>&#160;        <span class="comment">// UpsweepPolicy that opaquely derives from the specialization corresponding to the current PTX compiler pass</span></div>
<div class="line"><a name="l00435"></a><span class="lineno">  435</span>&#160;        <span class="keyword">struct </span>UpsweepPolicy : PtxTunedPolicies::UpsweepPolicy {};</div>
<div class="line"><a name="l00436"></a><span class="lineno">  436</span>&#160;</div>
<div class="line"><a name="l00437"></a><span class="lineno">  437</span>&#160;        <span class="comment">// ScanPolicy that opaquely derives from the specialization corresponding to the current PTX compiler pass</span></div>
<div class="line"><a name="l00438"></a><span class="lineno">  438</span>&#160;        <span class="keyword">struct </span>ScanPolicy : PtxTunedPolicies::ScanPolicy {};</div>
<div class="line"><a name="l00439"></a><span class="lineno">  439</span>&#160;</div>
<div class="line"><a name="l00440"></a><span class="lineno">  440</span>&#160;        <span class="comment">// DownsweepPolicy that opaquely derives from the specialization corresponding to the current PTX compiler pass</span></div>
<div class="line"><a name="l00441"></a><span class="lineno">  441</span>&#160;        <span class="keyword">struct </span>DownsweepPolicy : PtxTunedPolicies::DownsweepPolicy {};</div>
<div class="line"><a name="l00442"></a><span class="lineno">  442</span>&#160;</div>
<div class="line"><a name="l00443"></a><span class="lineno">  443</span>&#160;        <span class="comment">// Subscription factor for the current PTX compiler pass</span></div>
<div class="line"><a name="l00444"></a><span class="lineno">  444</span>&#160;        <span class="keyword">enum</span> { SUBSCRIPTION_FACTOR = PtxTunedPolicies::SUBSCRIPTION_FACTOR };</div>
<div class="line"><a name="l00445"></a><span class="lineno">  445</span>&#160;</div>
<div class="line"><a name="l00446"></a><span class="lineno">  446</span>&#160;</div>
<div class="line"><a name="l00450"></a><span class="lineno">  450</span>&#160;        <span class="keyword">static</span> <span class="keywordtype">void</span> InitDispatchParams(</div>
<div class="line"><a name="l00451"></a><span class="lineno">  451</span>&#160;            <span class="keywordtype">int</span>                    ptx_version,</div>
<div class="line"><a name="l00452"></a><span class="lineno">  452</span>&#160;            KernelDispachParams    &amp;upsweep_dispatch_params,</div>
<div class="line"><a name="l00453"></a><span class="lineno">  453</span>&#160;            KernelDispachParams    &amp;scan_dispatch_params,</div>
<div class="line"><a name="l00454"></a><span class="lineno">  454</span>&#160;            KernelDispachParams    &amp;downsweep_dispatch_params)</div>
<div class="line"><a name="l00455"></a><span class="lineno">  455</span>&#160;        {</div>
<div class="line"><a name="l00456"></a><span class="lineno">  456</span>&#160;            <span class="keywordflow">if</span> (ptx_version &gt;= 350)</div>
<div class="line"><a name="l00457"></a><span class="lineno">  457</span>&#160;            {</div>
<div class="line"><a name="l00458"></a><span class="lineno">  458</span>&#160;                <span class="keyword">typedef</span> TunedPolicies&lt;Key, Value, SizeT, 350&gt; TunedPolicies;</div>
<div class="line"><a name="l00459"></a><span class="lineno">  459</span>&#160;                upsweep_dispatch_params.InitUpsweepPolicy&lt;<span class="keyword">typename</span> TunedPolicies::UpsweepPolicy&gt;(TunedPolicies::SUBSCRIPTION_FACTOR);</div>
<div class="line"><a name="l00460"></a><span class="lineno">  460</span>&#160;                scan_dispatch_params.InitScanPolicy&lt;<span class="keyword">typename</span> TunedPolicies::ScanPolicy&gt;();</div>
<div class="line"><a name="l00461"></a><span class="lineno">  461</span>&#160;                downsweep_dispatch_params.InitDownsweepPolicy&lt;<span class="keyword">typename</span> TunedPolicies::DownsweepPolicy&gt;(TunedPolicies::SUBSCRIPTION_FACTOR);</div>
<div class="line"><a name="l00462"></a><span class="lineno">  462</span>&#160;            }</div>
<div class="line"><a name="l00463"></a><span class="lineno">  463</span>&#160;            <span class="keywordflow">else</span> <span class="keywordflow">if</span> (ptx_version &gt;= 200)</div>
<div class="line"><a name="l00464"></a><span class="lineno">  464</span>&#160;            {</div>
<div class="line"><a name="l00465"></a><span class="lineno">  465</span>&#160;                <span class="keyword">typedef</span> TunedPolicies&lt;Key, Value, SizeT, 200&gt; TunedPolicies;</div>
<div class="line"><a name="l00466"></a><span class="lineno">  466</span>&#160;                upsweep_dispatch_params.InitUpsweepPolicy&lt;<span class="keyword">typename</span> TunedPolicies::UpsweepPolicy&gt;(TunedPolicies::SUBSCRIPTION_FACTOR);</div>
<div class="line"><a name="l00467"></a><span class="lineno">  467</span>&#160;                scan_dispatch_params.InitScanPolicy&lt;<span class="keyword">typename</span> TunedPolicies::ScanPolicy&gt;();</div>
<div class="line"><a name="l00468"></a><span class="lineno">  468</span>&#160;                downsweep_dispatch_params.InitDownsweepPolicy&lt;<span class="keyword">typename</span> TunedPolicies::DownsweepPolicy&gt;(TunedPolicies::SUBSCRIPTION_FACTOR);</div>
<div class="line"><a name="l00469"></a><span class="lineno">  469</span>&#160;            }</div>
<div class="line"><a name="l00470"></a><span class="lineno">  470</span>&#160;            <span class="keywordflow">else</span></div>
<div class="line"><a name="l00471"></a><span class="lineno">  471</span>&#160;            {</div>
<div class="line"><a name="l00472"></a><span class="lineno">  472</span>&#160;                <span class="keyword">typedef</span> TunedPolicies&lt;Key, Value, SizeT, 100&gt; TunedPolicies;</div>
<div class="line"><a name="l00473"></a><span class="lineno">  473</span>&#160;                upsweep_dispatch_params.InitUpsweepPolicy&lt;<span class="keyword">typename</span> TunedPolicies::UpsweepPolicy&gt;(TunedPolicies::SUBSCRIPTION_FACTOR);</div>
<div class="line"><a name="l00474"></a><span class="lineno">  474</span>&#160;                scan_dispatch_params.InitScanPolicy&lt;<span class="keyword">typename</span> TunedPolicies::ScanPolicy&gt;();</div>
<div class="line"><a name="l00475"></a><span class="lineno">  475</span>&#160;                downsweep_dispatch_params.InitDownsweepPolicy&lt;<span class="keyword">typename</span> TunedPolicies::DownsweepPolicy&gt;(TunedPolicies::SUBSCRIPTION_FACTOR);</div>
<div class="line"><a name="l00476"></a><span class="lineno">  476</span>&#160;            }</div>
<div class="line"><a name="l00477"></a><span class="lineno">  477</span>&#160;        }</div>
<div class="line"><a name="l00478"></a><span class="lineno">  478</span>&#160;    };</div>
<div class="line"><a name="l00479"></a><span class="lineno">  479</span>&#160;</div>
<div class="line"><a name="l00480"></a><span class="lineno">  480</span>&#160;</div>
<div class="line"><a name="l00481"></a><span class="lineno">  481</span>&#160;</div>
<div class="line"><a name="l00482"></a><span class="lineno">  482</span>&#160;    <span class="comment">/******************************************************************************</span></div>
<div class="line"><a name="l00483"></a><span class="lineno">  483</span>&#160;<span class="comment">     * Utility methods</span></div>
<div class="line"><a name="l00484"></a><span class="lineno">  484</span>&#160;<span class="comment">     ******************************************************************************/</span></div>
<div class="line"><a name="l00485"></a><span class="lineno">  485</span>&#160;</div>
<div class="line"><a name="l00489"></a><span class="lineno">  489</span>&#160;    <span class="keyword">template</span> &lt;</div>
<div class="line"><a name="l00490"></a><span class="lineno">  490</span>&#160;        <span class="keyword">typename</span>            UpsweepKernelPtr,                       </div>
<div class="line"><a name="l00491"></a><span class="lineno">  491</span>&#160;        <span class="keyword">typename</span>            SpineKernelPtr,                         </div>
<div class="line"><a name="l00492"></a><span class="lineno">  492</span>&#160;        <span class="keyword">typename</span>            DownsweepKernelPtr,                     </div>
<div class="line"><a name="l00493"></a><span class="lineno">  493</span>&#160;        <span class="keyword">typename</span>            Key,                                    </div>
<div class="line"><a name="l00494"></a><span class="lineno">  494</span>&#160;        <span class="keyword">typename</span>            Value,                                  </div>
<div class="line"><a name="l00495"></a><span class="lineno">  495</span>&#160;        <span class="keyword">typename</span>            SizeT&gt;                                  </div>
<div class="line"><a name="l00496"></a><span class="lineno">  496</span>&#160;    __host__ __device__ __forceinline__</div>
<div class="line"><a name="l00497"></a><span class="lineno">  497</span>&#160;    <span class="keyword">static</span> cudaError_t Dispatch(</div>
<div class="line"><a name="l00498"></a><span class="lineno">  498</span>&#160;        <span class="keywordtype">void</span>                *d_temp_storage,                        </div>
<div class="line"><a name="l00499"></a><span class="lineno">  499</span>&#160;        <span class="keywordtype">size_t</span>              &amp;temp_storage_bytes,                    </div>
<div class="line"><a name="l00500"></a><span class="lineno">  500</span>&#160;        UpsweepKernelPtr    upsweep_kernel,                         </div>
<div class="line"><a name="l00501"></a><span class="lineno">  501</span>&#160;        SpineKernelPtr      scan_kernel,                            </div>
<div class="line"><a name="l00502"></a><span class="lineno">  502</span>&#160;        DownsweepKernelPtr  downsweep_kernel,                       </div>
<div class="line"><a name="l00503"></a><span class="lineno">  503</span>&#160;        KernelDispachParams &amp;upsweep_dispatch_params,               </div>
<div class="line"><a name="l00504"></a><span class="lineno">  504</span>&#160;        KernelDispachParams &amp;scan_dispatch_params,                  </div>
<div class="line"><a name="l00505"></a><span class="lineno">  505</span>&#160;        KernelDispachParams &amp;downsweep_dispatch_params,             </div>
<div class="line"><a name="l00506"></a><span class="lineno">  506</span>&#160;        <a class="code" href="structcub_1_1_double_buffer.html" title="Double-buffer storage wrapper for multi-pass stream transformations that require more than one storag...">DoubleBuffer&lt;Key&gt;</a>   &amp;d_keys,                                </div>
<div class="line"><a name="l00507"></a><span class="lineno">  507</span>&#160;        <a class="code" href="structcub_1_1_double_buffer.html" title="Double-buffer storage wrapper for multi-pass stream transformations that require more than one storag...">DoubleBuffer&lt;Value&gt;</a> &amp;d_values,                              </div>
<div class="line"><a name="l00508"></a><span class="lineno">  508</span>&#160;        SizeT               num_items,                              </div>
<div class="line"><a name="l00509"></a><span class="lineno">  509</span>&#160;        <span class="keywordtype">int</span>                 begin_bit           = 0,                </div>
<div class="line"><a name="l00510"></a><span class="lineno">  510</span>&#160;        <span class="keywordtype">int</span>                 end_bit             = <span class="keyword">sizeof</span>(Key) * 8,  </div>
<div class="line"><a name="l00511"></a><span class="lineno">  511</span>&#160;        cudaStream_t        stream              = 0,                </div>
<div class="line"><a name="l00512"></a><span class="lineno">  512</span>&#160;        <span class="keywordtype">bool</span>                stream_synchronous  = <span class="keyword">false</span>)            </div>
<div class="line"><a name="l00513"></a><span class="lineno">  513</span>&#160;    {</div>
<div class="line"><a name="l00514"></a><span class="lineno">  514</span>&#160;<span class="preprocessor">#ifndef CUB_RUNTIME_ENABLED</span></div>
<div class="line"><a name="l00515"></a><span class="lineno">  515</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l00516"></a><span class="lineno">  516</span>&#160;        <span class="comment">// Kernel launch not supported from this device</span></div>
<div class="line"><a name="l00517"></a><span class="lineno">  517</span>&#160;        <span class="keywordflow">return</span> <a class="code" href="group___util_module.html#ga84c3a4c178bf6593e0fad2b763606236" title="Debug macro. ">CubDebug</a>(cudaErrorNotSupported );</div>
<div class="line"><a name="l00518"></a><span class="lineno">  518</span>&#160;</div>
<div class="line"><a name="l00519"></a><span class="lineno">  519</span>&#160;<span class="preprocessor">#else</span></div>
<div class="line"><a name="l00520"></a><span class="lineno">  520</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l00521"></a><span class="lineno">  521</span>&#160;        cudaError error = cudaSuccess;</div>
<div class="line"><a name="l00522"></a><span class="lineno">  522</span>&#160;        <span class="keywordflow">do</span></div>
<div class="line"><a name="l00523"></a><span class="lineno">  523</span>&#160;        {</div>
<div class="line"><a name="l00524"></a><span class="lineno">  524</span>&#160;            <span class="comment">// Get device ordinal</span></div>
<div class="line"><a name="l00525"></a><span class="lineno">  525</span>&#160;            <span class="keywordtype">int</span> device_ordinal;</div>
<div class="line"><a name="l00526"></a><span class="lineno">  526</span>&#160;            <span class="keywordflow">if</span> (<a class="code" href="group___util_module.html#ga84c3a4c178bf6593e0fad2b763606236" title="Debug macro. ">CubDebug</a>(error = cudaGetDevice(&amp;device_ordinal))) <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00527"></a><span class="lineno">  527</span>&#160;</div>
<div class="line"><a name="l00528"></a><span class="lineno">  528</span>&#160;            <span class="comment">// Get SM count</span></div>
<div class="line"><a name="l00529"></a><span class="lineno">  529</span>&#160;            <span class="keywordtype">int</span> sm_count;</div>
<div class="line"><a name="l00530"></a><span class="lineno">  530</span>&#160;            <span class="keywordflow">if</span> (<a class="code" href="group___util_module.html#ga84c3a4c178bf6593e0fad2b763606236" title="Debug macro. ">CubDebug</a>(error = cudaDeviceGetAttribute (&amp;sm_count, cudaDevAttrMultiProcessorCount, device_ordinal))) <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00531"></a><span class="lineno">  531</span>&#160;</div>
<div class="line"><a name="l00532"></a><span class="lineno">  532</span>&#160;            <span class="comment">// Get a rough estimate of downsweep_kernel SM occupancy based upon the maximum SM occupancy of the targeted PTX architecture</span></div>
<div class="line"><a name="l00533"></a><span class="lineno">  533</span>&#160;            <span class="keywordtype">int</span> downsweep_sm_occupancy = CUB_MIN(</div>
<div class="line"><a name="l00534"></a><span class="lineno">  534</span>&#160;                <a class="code" href="structcub_1_1_arch_props.html" title="Structure for statically reporting CUDA device properties, parameterized by SM architecture. ">ArchProps&lt;CUB_PTX_ARCH&gt;::MAX_SM_THREADBLOCKS</a>,</div>
<div class="line"><a name="l00535"></a><span class="lineno">  535</span>&#160;                <a class="code" href="structcub_1_1_arch_props.html" title="Structure for statically reporting CUDA device properties, parameterized by SM architecture. ">ArchProps&lt;CUB_PTX_ARCH&gt;::MAX_SM_THREADS</a> / downsweep_dispatch_params.block_threads);</div>
<div class="line"><a name="l00536"></a><span class="lineno">  536</span>&#160;            <span class="keywordtype">int</span> upsweep_sm_occupancy = downsweep_sm_occupancy;</div>
<div class="line"><a name="l00537"></a><span class="lineno">  537</span>&#160;</div>
<div class="line"><a name="l00538"></a><span class="lineno">  538</span>&#160;<span class="preprocessor">#ifndef __CUDA_ARCH__</span></div>
<div class="line"><a name="l00539"></a><span class="lineno">  539</span>&#160;<span class="preprocessor"></span>            <span class="comment">// We&#39;re on the host, so come up with more accurate estimates of SM occupancy from actual device properties</span></div>
<div class="line"><a name="l00540"></a><span class="lineno">  540</span>&#160;            <a class="code" href="classcub_1_1_device.html" title="Properties of a given CUDA device and the corresponding PTX bundle. ">Device</a> device_props;</div>
<div class="line"><a name="l00541"></a><span class="lineno">  541</span>&#160;            <span class="keywordflow">if</span> (<a class="code" href="group___util_module.html#ga84c3a4c178bf6593e0fad2b763606236" title="Debug macro. ">CubDebug</a>(error = device_props.<a class="code" href="classcub_1_1_device.html#a4c1aecec381d2dce80120362feb2d0ca">Init</a>(device_ordinal))) <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00542"></a><span class="lineno">  542</span>&#160;</div>
<div class="line"><a name="l00543"></a><span class="lineno">  543</span>&#160;            <span class="keywordflow">if</span> (<a class="code" href="group___util_module.html#ga84c3a4c178bf6593e0fad2b763606236" title="Debug macro. ">CubDebug</a>(error = device_props.<a class="code" href="classcub_1_1_device.html#a618bbf36a5737a9b1533ff65834e88e8">MaxSmOccupancy</a>(</div>
<div class="line"><a name="l00544"></a><span class="lineno">  544</span>&#160;                downsweep_sm_occupancy,</div>
<div class="line"><a name="l00545"></a><span class="lineno">  545</span>&#160;                downsweep_kernel,</div>
<div class="line"><a name="l00546"></a><span class="lineno">  546</span>&#160;                downsweep_dispatch_params.block_threads))) <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00547"></a><span class="lineno">  547</span>&#160;</div>
<div class="line"><a name="l00548"></a><span class="lineno">  548</span>&#160;            <span class="keywordflow">if</span> (<a class="code" href="group___util_module.html#ga84c3a4c178bf6593e0fad2b763606236" title="Debug macro. ">CubDebug</a>(error = device_props.<a class="code" href="classcub_1_1_device.html#a618bbf36a5737a9b1533ff65834e88e8">MaxSmOccupancy</a>(</div>
<div class="line"><a name="l00549"></a><span class="lineno">  549</span>&#160;                upsweep_sm_occupancy,</div>
<div class="line"><a name="l00550"></a><span class="lineno">  550</span>&#160;                upsweep_kernel,</div>
<div class="line"><a name="l00551"></a><span class="lineno">  551</span>&#160;                upsweep_dispatch_params.block_threads))) <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00552"></a><span class="lineno">  552</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00553"></a><span class="lineno">  553</span>&#160;<span class="preprocessor"></span>            <span class="comment">// Get device occupancies</span></div>
<div class="line"><a name="l00554"></a><span class="lineno">  554</span>&#160;            <span class="keywordtype">int</span> downsweep_occupancy = downsweep_sm_occupancy * sm_count;</div>
<div class="line"><a name="l00555"></a><span class="lineno">  555</span>&#160;</div>
<div class="line"><a name="l00556"></a><span class="lineno">  556</span>&#160;            <span class="comment">// Get even-share work distribution descriptor</span></div>
<div class="line"><a name="l00557"></a><span class="lineno">  557</span>&#160;            GridEvenShare&lt;SizeT&gt; even_share;</div>
<div class="line"><a name="l00558"></a><span class="lineno">  558</span>&#160;            <span class="keywordtype">int</span> max_downsweep_grid_size = downsweep_occupancy * downsweep_dispatch_params.subscription_factor;</div>
<div class="line"><a name="l00559"></a><span class="lineno">  559</span>&#160;            <span class="keywordtype">int</span> downsweep_grid_size;</div>
<div class="line"><a name="l00560"></a><span class="lineno">  560</span>&#160;            even_share.GridInit(num_items, max_downsweep_grid_size, downsweep_dispatch_params.tile_size);</div>
<div class="line"><a name="l00561"></a><span class="lineno">  561</span>&#160;            downsweep_grid_size = even_share.grid_size;</div>
<div class="line"><a name="l00562"></a><span class="lineno">  562</span>&#160;</div>
<div class="line"><a name="l00563"></a><span class="lineno">  563</span>&#160;            <span class="comment">// Get number of spine elements (round up to nearest spine scan kernel tile size)</span></div>
<div class="line"><a name="l00564"></a><span class="lineno">  564</span>&#160;            <span class="keywordtype">int</span> bins            = 1 &lt;&lt; downsweep_dispatch_params.radix_bits;</div>
<div class="line"><a name="l00565"></a><span class="lineno">  565</span>&#160;            <span class="keywordtype">int</span> spine_size      = downsweep_grid_size * bins;</div>
<div class="line"><a name="l00566"></a><span class="lineno">  566</span>&#160;            <span class="keywordtype">int</span> spine_tiles     = (spine_size + scan_dispatch_params.tile_size - 1) / scan_dispatch_params.tile_size;</div>
<div class="line"><a name="l00567"></a><span class="lineno">  567</span>&#160;            spine_size          = spine_tiles * scan_dispatch_params.tile_size;</div>
<div class="line"><a name="l00568"></a><span class="lineno">  568</span>&#160;</div>
<div class="line"><a name="l00569"></a><span class="lineno">  569</span>&#160;            <span class="keywordtype">int</span> alt_bins            = 1 &lt;&lt; downsweep_dispatch_params.alt_radix_bits;</div>
<div class="line"><a name="l00570"></a><span class="lineno">  570</span>&#160;            <span class="keywordtype">int</span> alt_spine_size      = downsweep_grid_size * alt_bins;</div>
<div class="line"><a name="l00571"></a><span class="lineno">  571</span>&#160;            <span class="keywordtype">int</span> alt_spine_tiles     = (alt_spine_size + scan_dispatch_params.tile_size - 1) / scan_dispatch_params.tile_size;</div>
<div class="line"><a name="l00572"></a><span class="lineno">  572</span>&#160;            alt_spine_size          = alt_spine_tiles * scan_dispatch_params.tile_size;</div>
<div class="line"><a name="l00573"></a><span class="lineno">  573</span>&#160;</div>
<div class="line"><a name="l00574"></a><span class="lineno">  574</span>&#160;            <span class="comment">// Temporary storage allocation requirements</span></div>
<div class="line"><a name="l00575"></a><span class="lineno">  575</span>&#160;            <span class="keywordtype">void</span>* allocations[1];</div>
<div class="line"><a name="l00576"></a><span class="lineno">  576</span>&#160;            <span class="keywordtype">size_t</span> allocation_sizes[1] =</div>
<div class="line"><a name="l00577"></a><span class="lineno">  577</span>&#160;            {</div>
<div class="line"><a name="l00578"></a><span class="lineno">  578</span>&#160;                spine_size * <span class="keyword">sizeof</span>(SizeT),    <span class="comment">// bytes needed for privatized block digit histograms</span></div>
<div class="line"><a name="l00579"></a><span class="lineno">  579</span>&#160;            };</div>
<div class="line"><a name="l00580"></a><span class="lineno">  580</span>&#160;</div>
<div class="line"><a name="l00581"></a><span class="lineno">  581</span>&#160;            <span class="comment">// Alias temporaries (or set the necessary size of the storage allocation)</span></div>
<div class="line"><a name="l00582"></a><span class="lineno">  582</span>&#160;            <span class="keywordflow">if</span> (<a class="code" href="group___util_module.html#ga84c3a4c178bf6593e0fad2b763606236" title="Debug macro. ">CubDebug</a>(error = AliasTemporaries(d_temp_storage, temp_storage_bytes, allocations, allocation_sizes))) <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00583"></a><span class="lineno">  583</span>&#160;</div>
<div class="line"><a name="l00584"></a><span class="lineno">  584</span>&#160;            <span class="comment">// Return if the caller is simply requesting the size of the storage allocation</span></div>
<div class="line"><a name="l00585"></a><span class="lineno">  585</span>&#160;            <span class="keywordflow">if</span> (d_temp_storage == NULL)</div>
<div class="line"><a name="l00586"></a><span class="lineno">  586</span>&#160;                <span class="keywordflow">return</span> cudaSuccess;</div>
<div class="line"><a name="l00587"></a><span class="lineno">  587</span>&#160;</div>
<div class="line"><a name="l00588"></a><span class="lineno">  588</span>&#160;            <span class="comment">// Privatized per-block digit histograms</span></div>
<div class="line"><a name="l00589"></a><span class="lineno">  589</span>&#160;            SizeT *d_spine = (SizeT*) allocations[0];</div>
<div class="line"><a name="l00590"></a><span class="lineno">  590</span>&#160;</div>
<div class="line"><a name="l00591"></a><span class="lineno">  591</span>&#160;<span class="preprocessor">#ifndef __CUDA_ARCH__</span></div>
<div class="line"><a name="l00592"></a><span class="lineno">  592</span>&#160;<span class="preprocessor"></span>            <span class="comment">// Get current smem bank configuration</span></div>
<div class="line"><a name="l00593"></a><span class="lineno">  593</span>&#160;            cudaSharedMemConfig original_smem_config;</div>
<div class="line"><a name="l00594"></a><span class="lineno">  594</span>&#160;            <span class="keywordflow">if</span> (<a class="code" href="group___util_module.html#ga84c3a4c178bf6593e0fad2b763606236" title="Debug macro. ">CubDebug</a>(error = cudaDeviceGetSharedMemConfig(&amp;original_smem_config))) <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00595"></a><span class="lineno">  595</span>&#160;            cudaSharedMemConfig current_smem_config = original_smem_config;</div>
<div class="line"><a name="l00596"></a><span class="lineno">  596</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00597"></a><span class="lineno">  597</span>&#160;<span class="preprocessor"></span>            <span class="comment">// Iterate over digit places</span></div>
<div class="line"><a name="l00598"></a><span class="lineno">  598</span>&#160;            <span class="keywordtype">int</span> current_bit = begin_bit;</div>
<div class="line"><a name="l00599"></a><span class="lineno">  599</span>&#160;            <span class="keywordflow">while</span> (current_bit &lt; end_bit)</div>
<div class="line"><a name="l00600"></a><span class="lineno">  600</span>&#160;            {</div>
<div class="line"><a name="l00601"></a><span class="lineno">  601</span>&#160;                <span class="comment">// Use primary bit granularity if bits remaining is a whole multiple of bit primary granularity</span></div>
<div class="line"><a name="l00602"></a><span class="lineno">  602</span>&#160;                <span class="keywordtype">int</span> bits_remaining = end_bit - current_bit;</div>
<div class="line"><a name="l00603"></a><span class="lineno">  603</span>&#160;                <span class="keywordtype">bool</span> use_primary_bit_granularity = (bits_remaining % downsweep_dispatch_params.radix_bits == 0);</div>
<div class="line"><a name="l00604"></a><span class="lineno">  604</span>&#160;                <span class="keywordtype">int</span> radix_bits = (use_primary_bit_granularity) ?</div>
<div class="line"><a name="l00605"></a><span class="lineno">  605</span>&#160;                    downsweep_dispatch_params.radix_bits :</div>
<div class="line"><a name="l00606"></a><span class="lineno">  606</span>&#160;                    downsweep_dispatch_params.alt_radix_bits;</div>
<div class="line"><a name="l00607"></a><span class="lineno">  607</span>&#160;</div>
<div class="line"><a name="l00608"></a><span class="lineno">  608</span>&#160;#ifndef __CUDA_ARCH__</div>
<div class="line"><a name="l00609"></a><span class="lineno">  609</span>&#160;                <span class="comment">// Update smem config if necessary</span></div>
<div class="line"><a name="l00610"></a><span class="lineno">  610</span>&#160;                if (current_smem_config != upsweep_dispatch_params.smem_config)</div>
<div class="line"><a name="l00611"></a><span class="lineno">  611</span>&#160;                {</div>
<div class="line"><a name="l00612"></a><span class="lineno">  612</span>&#160;                    <span class="keywordflow">if</span> (<a class="code" href="group___util_module.html#ga84c3a4c178bf6593e0fad2b763606236" title="Debug macro. ">CubDebug</a>(error = cudaDeviceSetSharedMemConfig(upsweep_dispatch_params.smem_config))) <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00613"></a><span class="lineno">  613</span>&#160;                    current_smem_config = upsweep_dispatch_params.smem_config;</div>
<div class="line"><a name="l00614"></a><span class="lineno">  614</span>&#160;                }</div>
<div class="line"><a name="l00615"></a><span class="lineno">  615</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00616"></a><span class="lineno">  616</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l00617"></a><span class="lineno">  617</span>&#160;                <span class="comment">// Log upsweep_kernel configuration</span></div>
<div class="line"><a name="l00618"></a><span class="lineno">  618</span>&#160;                <span class="keywordflow">if</span> (stream_synchronous)</div>
<div class="line"><a name="l00619"></a><span class="lineno">  619</span>&#160;                    <a class="code" href="group___util_module.html#ga6788287a780dc10c443aa1ab5ae9f0db" title="Log macro for printf statements. ">CubLog</a>(<span class="stringliteral">&quot;Invoking upsweep_kernel&lt;&lt;&lt;%d, %d, 0, %lld&gt;&gt;&gt;(), %d smem config, %d items per thread, %d SM occupancy, selector %d, current bit %d, bit_grain %d\n&quot;</span>,</div>
<div class="line"><a name="l00620"></a><span class="lineno">  620</span>&#160;                    downsweep_grid_size, upsweep_dispatch_params.block_threads, (<span class="keywordtype">long</span> <span class="keywordtype">long</span>) stream, upsweep_dispatch_params.smem_config, upsweep_dispatch_params.items_per_thread, upsweep_sm_occupancy, d_keys.<a class="code" href="structcub_1_1_double_buffer.html#a9641172c847169904c4054856d7c26f4" title="Selector into d_buffers (i.e., the active/valid buffer) ">selector</a>, current_bit, radix_bits);</div>
<div class="line"><a name="l00621"></a><span class="lineno">  621</span>&#160;</div>
<div class="line"><a name="l00622"></a><span class="lineno">  622</span>&#160;                <span class="comment">// Invoke upsweep_kernel with same grid size as downsweep_kernel</span></div>
<div class="line"><a name="l00623"></a><span class="lineno">  623</span>&#160;                upsweep_kernel&lt;&lt;&lt;downsweep_grid_size, upsweep_dispatch_params.block_threads, 0, stream&gt;&gt;&gt;(</div>
<div class="line"><a name="l00624"></a><span class="lineno">  624</span>&#160;                    d_keys.<a class="code" href="structcub_1_1_double_buffer.html#a38a2d8a9d5a36e9e4b9132166717a0b4" title="Pair of device buffer pointers. ">d_buffers</a>[d_keys.<a class="code" href="structcub_1_1_double_buffer.html#a9641172c847169904c4054856d7c26f4" title="Selector into d_buffers (i.e., the active/valid buffer) ">selector</a>],</div>
<div class="line"><a name="l00625"></a><span class="lineno">  625</span>&#160;                    d_spine,</div>
<div class="line"><a name="l00626"></a><span class="lineno">  626</span>&#160;                    num_items,</div>
<div class="line"><a name="l00627"></a><span class="lineno">  627</span>&#160;                    current_bit,</div>
<div class="line"><a name="l00628"></a><span class="lineno">  628</span>&#160;                    use_primary_bit_granularity,</div>
<div class="line"><a name="l00629"></a><span class="lineno">  629</span>&#160;                    (current_bit == begin_bit),</div>
<div class="line"><a name="l00630"></a><span class="lineno">  630</span>&#160;                    even_share);</div>
<div class="line"><a name="l00631"></a><span class="lineno">  631</span>&#160;</div>
<div class="line"><a name="l00632"></a><span class="lineno">  632</span>&#160;                <span class="comment">// Sync the stream if specified</span></div>
<div class="line"><a name="l00633"></a><span class="lineno">  633</span>&#160;                <span class="keywordflow">if</span> (stream_synchronous &amp;&amp; (<a class="code" href="group___util_module.html#ga84c3a4c178bf6593e0fad2b763606236" title="Debug macro. ">CubDebug</a>(error = SyncStream(stream)))) <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00634"></a><span class="lineno">  634</span>&#160;</div>
<div class="line"><a name="l00635"></a><span class="lineno">  635</span>&#160;                <span class="comment">// Log scan_kernel configuration</span></div>
<div class="line"><a name="l00636"></a><span class="lineno">  636</span>&#160;                <span class="keywordflow">if</span> (stream_synchronous) <a class="code" href="group___util_module.html#ga6788287a780dc10c443aa1ab5ae9f0db" title="Log macro for printf statements. ">CubLog</a>(<span class="stringliteral">&quot;Invoking scan_kernel&lt;&lt;&lt;%d, %d, 0, %lld&gt;&gt;&gt;(), %d items per thread\n&quot;</span>,</div>
<div class="line"><a name="l00637"></a><span class="lineno">  637</span>&#160;                    1, scan_dispatch_params.block_threads, (<span class="keywordtype">long</span> <span class="keywordtype">long</span>) stream, scan_dispatch_params.items_per_thread);</div>
<div class="line"><a name="l00638"></a><span class="lineno">  638</span>&#160;</div>
<div class="line"><a name="l00639"></a><span class="lineno">  639</span>&#160;                <span class="comment">// Invoke scan_kernel</span></div>
<div class="line"><a name="l00640"></a><span class="lineno">  640</span>&#160;                scan_kernel&lt;&lt;&lt;1, scan_dispatch_params.block_threads, 0, stream&gt;&gt;&gt;(</div>
<div class="line"><a name="l00641"></a><span class="lineno">  641</span>&#160;                    d_spine,</div>
<div class="line"><a name="l00642"></a><span class="lineno">  642</span>&#160;                    (use_primary_bit_granularity) ? spine_size : alt_spine_size);</div>
<div class="line"><a name="l00643"></a><span class="lineno">  643</span>&#160;</div>
<div class="line"><a name="l00644"></a><span class="lineno">  644</span>&#160;                <span class="comment">// Sync the stream if specified</span></div>
<div class="line"><a name="l00645"></a><span class="lineno">  645</span>&#160;                <span class="keywordflow">if</span> (stream_synchronous &amp;&amp; (<a class="code" href="group___util_module.html#ga84c3a4c178bf6593e0fad2b763606236" title="Debug macro. ">CubDebug</a>(error = SyncStream(stream)))) <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00646"></a><span class="lineno">  646</span>&#160;</div>
<div class="line"><a name="l00647"></a><span class="lineno">  647</span>&#160;<span class="preprocessor">#ifndef __CUDA_ARCH__</span></div>
<div class="line"><a name="l00648"></a><span class="lineno">  648</span>&#160;<span class="preprocessor"></span>                <span class="comment">// Update smem config if necessary</span></div>
<div class="line"><a name="l00649"></a><span class="lineno">  649</span>&#160;                <span class="keywordflow">if</span> (current_smem_config != downsweep_dispatch_params.smem_config)</div>
<div class="line"><a name="l00650"></a><span class="lineno">  650</span>&#160;                {</div>
<div class="line"><a name="l00651"></a><span class="lineno">  651</span>&#160;                    <span class="keywordflow">if</span> (<a class="code" href="group___util_module.html#ga84c3a4c178bf6593e0fad2b763606236" title="Debug macro. ">CubDebug</a>(error = cudaDeviceSetSharedMemConfig(downsweep_dispatch_params.smem_config))) <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00652"></a><span class="lineno">  652</span>&#160;                    current_smem_config = downsweep_dispatch_params.smem_config;</div>
<div class="line"><a name="l00653"></a><span class="lineno">  653</span>&#160;                }</div>
<div class="line"><a name="l00654"></a><span class="lineno">  654</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00655"></a><span class="lineno">  655</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l00656"></a><span class="lineno">  656</span>&#160;                <span class="comment">// Log downsweep_kernel configuration</span></div>
<div class="line"><a name="l00657"></a><span class="lineno">  657</span>&#160;                <span class="keywordflow">if</span> (stream_synchronous) <a class="code" href="group___util_module.html#ga6788287a780dc10c443aa1ab5ae9f0db" title="Log macro for printf statements. ">CubLog</a>(<span class="stringliteral">&quot;Invoking downsweep_kernel&lt;&lt;&lt;%d, %d, 0, %lld&gt;&gt;&gt;(), %d smem config, %d items per thread, %d SM occupancy\n&quot;</span>,</div>
<div class="line"><a name="l00658"></a><span class="lineno">  658</span>&#160;                    downsweep_grid_size, downsweep_dispatch_params.block_threads, (<span class="keywordtype">long</span> <span class="keywordtype">long</span>) stream, downsweep_dispatch_params.smem_config, downsweep_dispatch_params.items_per_thread, downsweep_sm_occupancy);</div>
<div class="line"><a name="l00659"></a><span class="lineno">  659</span>&#160;</div>
<div class="line"><a name="l00660"></a><span class="lineno">  660</span>&#160;                <span class="comment">// Invoke downsweep_kernel</span></div>
<div class="line"><a name="l00661"></a><span class="lineno">  661</span>&#160;                downsweep_kernel&lt;&lt;&lt;downsweep_grid_size, downsweep_dispatch_params.block_threads, 0, stream&gt;&gt;&gt;(</div>
<div class="line"><a name="l00662"></a><span class="lineno">  662</span>&#160;                    d_keys.<a class="code" href="structcub_1_1_double_buffer.html#a38a2d8a9d5a36e9e4b9132166717a0b4" title="Pair of device buffer pointers. ">d_buffers</a>[d_keys.<a class="code" href="structcub_1_1_double_buffer.html#a9641172c847169904c4054856d7c26f4" title="Selector into d_buffers (i.e., the active/valid buffer) ">selector</a>],</div>
<div class="line"><a name="l00663"></a><span class="lineno">  663</span>&#160;                    d_keys.<a class="code" href="structcub_1_1_double_buffer.html#a38a2d8a9d5a36e9e4b9132166717a0b4" title="Pair of device buffer pointers. ">d_buffers</a>[d_keys.<a class="code" href="structcub_1_1_double_buffer.html#a9641172c847169904c4054856d7c26f4" title="Selector into d_buffers (i.e., the active/valid buffer) ">selector</a> ^ 1],</div>
<div class="line"><a name="l00664"></a><span class="lineno">  664</span>&#160;                    d_values.<a class="code" href="structcub_1_1_double_buffer.html#a38a2d8a9d5a36e9e4b9132166717a0b4" title="Pair of device buffer pointers. ">d_buffers</a>[d_values.<a class="code" href="structcub_1_1_double_buffer.html#a9641172c847169904c4054856d7c26f4" title="Selector into d_buffers (i.e., the active/valid buffer) ">selector</a>],</div>
<div class="line"><a name="l00665"></a><span class="lineno">  665</span>&#160;                    d_values.<a class="code" href="structcub_1_1_double_buffer.html#a38a2d8a9d5a36e9e4b9132166717a0b4" title="Pair of device buffer pointers. ">d_buffers</a>[d_values.<a class="code" href="structcub_1_1_double_buffer.html#a9641172c847169904c4054856d7c26f4" title="Selector into d_buffers (i.e., the active/valid buffer) ">selector</a> ^ 1],</div>
<div class="line"><a name="l00666"></a><span class="lineno">  666</span>&#160;                    d_spine,</div>
<div class="line"><a name="l00667"></a><span class="lineno">  667</span>&#160;                    num_items,</div>
<div class="line"><a name="l00668"></a><span class="lineno">  668</span>&#160;                    current_bit,</div>
<div class="line"><a name="l00669"></a><span class="lineno">  669</span>&#160;                    use_primary_bit_granularity,</div>
<div class="line"><a name="l00670"></a><span class="lineno">  670</span>&#160;                    (current_bit == begin_bit),</div>
<div class="line"><a name="l00671"></a><span class="lineno">  671</span>&#160;                    (current_bit + downsweep_dispatch_params.radix_bits &gt;= end_bit),</div>
<div class="line"><a name="l00672"></a><span class="lineno">  672</span>&#160;                    even_share);</div>
<div class="line"><a name="l00673"></a><span class="lineno">  673</span>&#160;</div>
<div class="line"><a name="l00674"></a><span class="lineno">  674</span>&#160;                <span class="comment">// Sync the stream if specified</span></div>
<div class="line"><a name="l00675"></a><span class="lineno">  675</span>&#160;                <span class="keywordflow">if</span> (stream_synchronous &amp;&amp; (<a class="code" href="group___util_module.html#ga84c3a4c178bf6593e0fad2b763606236" title="Debug macro. ">CubDebug</a>(error = SyncStream(stream)))) <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00676"></a><span class="lineno">  676</span>&#160;</div>
<div class="line"><a name="l00677"></a><span class="lineno">  677</span>&#160;                <span class="comment">// Invert selectors</span></div>
<div class="line"><a name="l00678"></a><span class="lineno">  678</span>&#160;                d_keys.<a class="code" href="structcub_1_1_double_buffer.html#a9641172c847169904c4054856d7c26f4" title="Selector into d_buffers (i.e., the active/valid buffer) ">selector</a> ^= 1;</div>
<div class="line"><a name="l00679"></a><span class="lineno">  679</span>&#160;                d_values.<a class="code" href="structcub_1_1_double_buffer.html#a9641172c847169904c4054856d7c26f4" title="Selector into d_buffers (i.e., the active/valid buffer) ">selector</a> ^= 1;</div>
<div class="line"><a name="l00680"></a><span class="lineno">  680</span>&#160;</div>
<div class="line"><a name="l00681"></a><span class="lineno">  681</span>&#160;                <span class="comment">// Update current bit position</span></div>
<div class="line"><a name="l00682"></a><span class="lineno">  682</span>&#160;                current_bit += radix_bits;</div>
<div class="line"><a name="l00683"></a><span class="lineno">  683</span>&#160;            }</div>
<div class="line"><a name="l00684"></a><span class="lineno">  684</span>&#160;</div>
<div class="line"><a name="l00685"></a><span class="lineno">  685</span>&#160;<span class="preprocessor">#ifndef __CUDA_ARCH__</span></div>
<div class="line"><a name="l00686"></a><span class="lineno">  686</span>&#160;<span class="preprocessor"></span>            <span class="comment">// Reset smem config if necessary</span></div>
<div class="line"><a name="l00687"></a><span class="lineno">  687</span>&#160;            <span class="keywordflow">if</span> (current_smem_config != original_smem_config)</div>
<div class="line"><a name="l00688"></a><span class="lineno">  688</span>&#160;            {</div>
<div class="line"><a name="l00689"></a><span class="lineno">  689</span>&#160;                <span class="keywordflow">if</span> (<a class="code" href="group___util_module.html#ga84c3a4c178bf6593e0fad2b763606236" title="Debug macro. ">CubDebug</a>(error = cudaDeviceSetSharedMemConfig(original_smem_config))) <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00690"></a><span class="lineno">  690</span>&#160;            }</div>
<div class="line"><a name="l00691"></a><span class="lineno">  691</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00692"></a><span class="lineno">  692</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l00693"></a><span class="lineno">  693</span>&#160;        }</div>
<div class="line"><a name="l00694"></a><span class="lineno">  694</span>&#160;        <span class="keywordflow">while</span> (0);</div>
<div class="line"><a name="l00695"></a><span class="lineno">  695</span>&#160;</div>
<div class="line"><a name="l00696"></a><span class="lineno">  696</span>&#160;        <span class="keywordflow">return</span> error;</div>
<div class="line"><a name="l00697"></a><span class="lineno">  697</span>&#160;</div>
<div class="line"><a name="l00698"></a><span class="lineno">  698</span>&#160;<span class="preprocessor">#endif // CUB_RUNTIME_ENABLED</span></div>
<div class="line"><a name="l00699"></a><span class="lineno">  699</span>&#160;<span class="preprocessor"></span>    }</div>
<div class="line"><a name="l00700"></a><span class="lineno">  700</span>&#160;</div>
<div class="line"><a name="l00701"></a><span class="lineno">  701</span>&#160;</div>
<div class="line"><a name="l00702"></a><span class="lineno">  702</span>&#160;</div>
<div class="line"><a name="l00703"></a><span class="lineno">  703</span>&#160;<span class="preprocessor">    #endif // DOXYGEN_SHOULD_SKIP_THIS</span></div>
<div class="line"><a name="l00704"></a><span class="lineno">  704</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l00705"></a><span class="lineno">  705</span>&#160;    <span class="comment">/******************************************************************************</span></div>
<div class="line"><a name="l00706"></a><span class="lineno">  706</span>&#160;<span class="comment">     * Interface</span></div>
<div class="line"><a name="l00707"></a><span class="lineno">  707</span>&#160;<span class="comment">     ******************************************************************************/</span></div>
<div class="line"><a name="l00708"></a><span class="lineno">  708</span>&#160;</div>
<div class="line"><a name="l00709"></a><span class="lineno">  709</span>&#160;</div>
<div class="line"><a name="l00755"></a><span class="lineno">  755</span>&#160;    <span class="keyword">template</span> &lt;</div>
<div class="line"><a name="l00756"></a><span class="lineno">  756</span>&#160;        <span class="keyword">typename</span>            Key,</div>
<div class="line"><a name="l00757"></a><span class="lineno">  757</span>&#160;        <span class="keyword">typename</span>            Value&gt;</div>
<div class="line"><a name="l00758"></a><span class="lineno">  758</span>&#160;    __host__ __device__ __forceinline__</div>
<div class="line"><a name="l00759"></a><span class="lineno"><a class="code" href="structcub_1_1_device_radix_sort.html#ad42b50b38c4296c371572efdedd49fed">  759</a></span>&#160;    <span class="keyword">static</span> cudaError_t <a class="code" href="structcub_1_1_device_radix_sort.html#ad42b50b38c4296c371572efdedd49fed" title="Sorts key-value pairs. ">SortPairs</a>(</div>
<div class="line"><a name="l00760"></a><span class="lineno">  760</span>&#160;        <span class="keywordtype">void</span>                *d_temp_storage,                        </div>
<div class="line"><a name="l00761"></a><span class="lineno">  761</span>&#160;        <span class="keywordtype">size_t</span>              &amp;temp_storage_bytes,                    </div>
<div class="line"><a name="l00762"></a><span class="lineno">  762</span>&#160;        <a class="code" href="structcub_1_1_double_buffer.html" title="Double-buffer storage wrapper for multi-pass stream transformations that require more than one storag...">DoubleBuffer&lt;Key&gt;</a>   &amp;d_keys,                                </div>
<div class="line"><a name="l00763"></a><span class="lineno">  763</span>&#160;        <a class="code" href="structcub_1_1_double_buffer.html" title="Double-buffer storage wrapper for multi-pass stream transformations that require more than one storag...">DoubleBuffer&lt;Value&gt;</a> &amp;d_values,                              </div>
<div class="line"><a name="l00764"></a><span class="lineno">  764</span>&#160;        <span class="keywordtype">int</span>                 num_items,                              </div>
<div class="line"><a name="l00765"></a><span class="lineno">  765</span>&#160;        <span class="keywordtype">int</span>                 begin_bit           = 0,                </div>
<div class="line"><a name="l00766"></a><span class="lineno">  766</span>&#160;        <span class="keywordtype">int</span>                 end_bit             = <span class="keyword">sizeof</span>(Key) * 8,  </div>
<div class="line"><a name="l00767"></a><span class="lineno">  767</span>&#160;        cudaStream_t        stream              = 0,                </div>
<div class="line"><a name="l00768"></a><span class="lineno">  768</span>&#160;        <span class="keywordtype">bool</span>                stream_synchronous  = <span class="keyword">false</span>)            </div>
<div class="line"><a name="l00769"></a><span class="lineno">  769</span>&#160;    {</div>
<div class="line"><a name="l00770"></a><span class="lineno">  770</span>&#160;        <span class="comment">// Type used for array indexing</span></div>
<div class="line"><a name="l00771"></a><span class="lineno">  771</span>&#160;        <span class="keyword">typedef</span> <span class="keywordtype">int</span> SizeT;</div>
<div class="line"><a name="l00772"></a><span class="lineno">  772</span>&#160;</div>
<div class="line"><a name="l00773"></a><span class="lineno">  773</span>&#160;        <span class="comment">// Tuning polices</span></div>
<div class="line"><a name="l00774"></a><span class="lineno">  774</span>&#160;        <span class="keyword">typedef</span> PtxDefaultPolicies&lt;Key, Value, SizeT&gt;           PtxDefaultPolicies; <span class="comment">// Wrapper of default kernel policies</span></div>
<div class="line"><a name="l00775"></a><span class="lineno">  775</span>&#160;        <span class="keyword">typedef</span> <span class="keyword">typename</span> PtxDefaultPolicies::UpsweepPolicy      UpsweepPolicy;      <span class="comment">// Upsweep kernel policy</span></div>
<div class="line"><a name="l00776"></a><span class="lineno">  776</span>&#160;        <span class="keyword">typedef</span> <span class="keyword">typename</span> PtxDefaultPolicies::ScanPolicy         ScanPolicy;         <span class="comment">// Scan kernel policy</span></div>
<div class="line"><a name="l00777"></a><span class="lineno">  777</span>&#160;        <span class="keyword">typedef</span> <span class="keyword">typename</span> PtxDefaultPolicies::DownsweepPolicy    DownsweepPolicy;    <span class="comment">// Downsweep kernel policy</span></div>
<div class="line"><a name="l00778"></a><span class="lineno">  778</span>&#160;</div>
<div class="line"><a name="l00779"></a><span class="lineno">  779</span>&#160;        cudaError error = cudaSuccess;</div>
<div class="line"><a name="l00780"></a><span class="lineno">  780</span>&#160;        <span class="keywordflow">do</span></div>
<div class="line"><a name="l00781"></a><span class="lineno">  781</span>&#160;        {</div>
<div class="line"><a name="l00782"></a><span class="lineno">  782</span>&#160;            <span class="comment">// Declare dispatch parameters</span></div>
<div class="line"><a name="l00783"></a><span class="lineno">  783</span>&#160;            KernelDispachParams upsweep_dispatch_params;</div>
<div class="line"><a name="l00784"></a><span class="lineno">  784</span>&#160;            KernelDispachParams scan_dispatch_params;</div>
<div class="line"><a name="l00785"></a><span class="lineno">  785</span>&#160;            KernelDispachParams downsweep_dispatch_params;</div>
<div class="line"><a name="l00786"></a><span class="lineno">  786</span>&#160;</div>
<div class="line"><a name="l00787"></a><span class="lineno">  787</span>&#160;<span class="preprocessor">#ifdef __CUDA_ARCH__</span></div>
<div class="line"><a name="l00788"></a><span class="lineno">  788</span>&#160;<span class="preprocessor"></span>            <span class="comment">// We&#39;re on the device, so initialize the dispatch parameters with the PtxDefaultPolicies directly</span></div>
<div class="line"><a name="l00789"></a><span class="lineno">  789</span>&#160;            upsweep_dispatch_params.InitUpsweepPolicy&lt;UpsweepPolicy&gt;(PtxDefaultPolicies::SUBSCRIPTION_FACTOR);</div>
<div class="line"><a name="l00790"></a><span class="lineno">  790</span>&#160;            scan_dispatch_params.InitScanPolicy&lt;ScanPolicy&gt;();</div>
<div class="line"><a name="l00791"></a><span class="lineno">  791</span>&#160;            downsweep_dispatch_params.InitDownsweepPolicy&lt;DownsweepPolicy&gt;(PtxDefaultPolicies::SUBSCRIPTION_FACTOR);</div>
<div class="line"><a name="l00792"></a><span class="lineno">  792</span>&#160;<span class="preprocessor">#else</span></div>
<div class="line"><a name="l00793"></a><span class="lineno">  793</span>&#160;<span class="preprocessor"></span>            <span class="comment">// We&#39;re on the host, so lookup and initialize the dispatch parameters with the policies that match the device&#39;s PTX version</span></div>
<div class="line"><a name="l00794"></a><span class="lineno">  794</span>&#160;            <span class="keywordtype">int</span> ptx_version;</div>
<div class="line"><a name="l00795"></a><span class="lineno">  795</span>&#160;            <span class="keywordflow">if</span> (<a class="code" href="group___util_module.html#ga84c3a4c178bf6593e0fad2b763606236" title="Debug macro. ">CubDebug</a>(error = <a class="code" href="group___util_module.html#gac3d86a53650d110862fe8a84fce61c2e" title="Retrieves the PTX version (major * 100 + minor * 10) ">PtxVersion</a>(ptx_version))) <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00796"></a><span class="lineno">  796</span>&#160;            PtxDefaultPolicies::InitDispatchParams(</div>
<div class="line"><a name="l00797"></a><span class="lineno">  797</span>&#160;                ptx_version,</div>
<div class="line"><a name="l00798"></a><span class="lineno">  798</span>&#160;                upsweep_dispatch_params,</div>
<div class="line"><a name="l00799"></a><span class="lineno">  799</span>&#160;                scan_dispatch_params,</div>
<div class="line"><a name="l00800"></a><span class="lineno">  800</span>&#160;                downsweep_dispatch_params);</div>
<div class="line"><a name="l00801"></a><span class="lineno">  801</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00802"></a><span class="lineno">  802</span>&#160;<span class="preprocessor"></span>            <span class="comment">// Dispatch</span></div>
<div class="line"><a name="l00803"></a><span class="lineno">  803</span>&#160;            <span class="keywordflow">if</span> (<a class="code" href="group___util_module.html#ga84c3a4c178bf6593e0fad2b763606236" title="Debug macro. ">CubDebug</a>(error = Dispatch(</div>
<div class="line"><a name="l00804"></a><span class="lineno">  804</span>&#160;                d_temp_storage,</div>
<div class="line"><a name="l00805"></a><span class="lineno">  805</span>&#160;                temp_storage_bytes,</div>
<div class="line"><a name="l00806"></a><span class="lineno">  806</span>&#160;                RadixSortUpsweepKernel&lt;UpsweepPolicy, Key, SizeT&gt;,</div>
<div class="line"><a name="l00807"></a><span class="lineno">  807</span>&#160;                RadixSortScanKernel&lt;ScanPolicy, SizeT&gt;,</div>
<div class="line"><a name="l00808"></a><span class="lineno">  808</span>&#160;                RadixSortDownsweepKernel&lt;DownsweepPolicy, Key, Value, SizeT&gt;,</div>
<div class="line"><a name="l00809"></a><span class="lineno">  809</span>&#160;                upsweep_dispatch_params,</div>
<div class="line"><a name="l00810"></a><span class="lineno">  810</span>&#160;                scan_dispatch_params,</div>
<div class="line"><a name="l00811"></a><span class="lineno">  811</span>&#160;                downsweep_dispatch_params,</div>
<div class="line"><a name="l00812"></a><span class="lineno">  812</span>&#160;                d_keys,</div>
<div class="line"><a name="l00813"></a><span class="lineno">  813</span>&#160;                d_values,</div>
<div class="line"><a name="l00814"></a><span class="lineno">  814</span>&#160;                num_items,</div>
<div class="line"><a name="l00815"></a><span class="lineno">  815</span>&#160;                begin_bit,</div>
<div class="line"><a name="l00816"></a><span class="lineno">  816</span>&#160;                end_bit,</div>
<div class="line"><a name="l00817"></a><span class="lineno">  817</span>&#160;                stream,</div>
<div class="line"><a name="l00818"></a><span class="lineno">  818</span>&#160;                stream_synchronous))) <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00819"></a><span class="lineno">  819</span>&#160;        }</div>
<div class="line"><a name="l00820"></a><span class="lineno">  820</span>&#160;        <span class="keywordflow">while</span> (0);</div>
<div class="line"><a name="l00821"></a><span class="lineno">  821</span>&#160;</div>
<div class="line"><a name="l00822"></a><span class="lineno">  822</span>&#160;        <span class="keywordflow">return</span> error;</div>
<div class="line"><a name="l00823"></a><span class="lineno">  823</span>&#160;    }</div>
<div class="line"><a name="l00824"></a><span class="lineno">  824</span>&#160;</div>
<div class="line"><a name="l00825"></a><span class="lineno">  825</span>&#160;</div>
<div class="line"><a name="l00868"></a><span class="lineno">  868</span>&#160;    <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Key&gt;</div>
<div class="line"><a name="l00869"></a><span class="lineno">  869</span>&#160;    __host__ __device__ __forceinline__</div>
<div class="line"><a name="l00870"></a><span class="lineno"><a class="code" href="structcub_1_1_device_radix_sort.html#aafc81e527c3fe142b482ed59835fd0d3">  870</a></span>&#160;    <span class="keyword">static</span> cudaError_t <a class="code" href="structcub_1_1_device_radix_sort.html#aafc81e527c3fe142b482ed59835fd0d3" title="Sorts keys. ">SortKeys</a>(</div>
<div class="line"><a name="l00871"></a><span class="lineno">  871</span>&#160;        <span class="keywordtype">void</span>                *d_temp_storage,                        </div>
<div class="line"><a name="l00872"></a><span class="lineno">  872</span>&#160;        <span class="keywordtype">size_t</span>              &amp;temp_storage_bytes,                    </div>
<div class="line"><a name="l00873"></a><span class="lineno">  873</span>&#160;        <a class="code" href="structcub_1_1_double_buffer.html" title="Double-buffer storage wrapper for multi-pass stream transformations that require more than one storag...">DoubleBuffer&lt;Key&gt;</a>   &amp;d_keys,                                </div>
<div class="line"><a name="l00874"></a><span class="lineno">  874</span>&#160;        <span class="keywordtype">int</span>                 num_items,                              </div>
<div class="line"><a name="l00875"></a><span class="lineno">  875</span>&#160;        <span class="keywordtype">int</span>                 begin_bit           = 0,                </div>
<div class="line"><a name="l00876"></a><span class="lineno">  876</span>&#160;        <span class="keywordtype">int</span>                 end_bit             = <span class="keyword">sizeof</span>(Key) * 8,  </div>
<div class="line"><a name="l00877"></a><span class="lineno">  877</span>&#160;        cudaStream_t        stream              = 0,                </div>
<div class="line"><a name="l00878"></a><span class="lineno">  878</span>&#160;        <span class="keywordtype">bool</span>                stream_synchronous  = <span class="keyword">false</span>)            </div>
<div class="line"><a name="l00879"></a><span class="lineno">  879</span>&#160;    {</div>
<div class="line"><a name="l00880"></a><span class="lineno">  880</span>&#160;        <a class="code" href="structcub_1_1_double_buffer.html" title="Double-buffer storage wrapper for multi-pass stream transformations that require more than one storag...">DoubleBuffer&lt;NullType&gt;</a> d_values;</div>
<div class="line"><a name="l00881"></a><span class="lineno">  881</span>&#160;        <span class="keywordflow">return</span> <a class="code" href="structcub_1_1_device_radix_sort.html#ad42b50b38c4296c371572efdedd49fed" title="Sorts key-value pairs. ">SortPairs</a>(d_temp_storage, temp_storage_bytes, d_keys, d_values, num_items, begin_bit, end_bit, stream, stream_synchronous);</div>
<div class="line"><a name="l00882"></a><span class="lineno">  882</span>&#160;    }</div>
<div class="line"><a name="l00883"></a><span class="lineno">  883</span>&#160;</div>
<div class="line"><a name="l00884"></a><span class="lineno">  884</span>&#160;};</div>
<div class="line"><a name="l00885"></a><span class="lineno">  885</span>&#160;</div>
<div class="line"><a name="l00886"></a><span class="lineno">  886</span>&#160;</div>
<div class="line"><a name="l00887"></a><span class="lineno">  887</span>&#160;}               <span class="comment">// CUB namespace</span></div>
<div class="line"><a name="l00888"></a><span class="lineno">  888</span>&#160;CUB_NS_POSTFIX  <span class="comment">// Optional outer namespace(s)</span></div>
<div class="line"><a name="l00889"></a><span class="lineno">  889</span>&#160;</div>
<div class="line"><a name="l00890"></a><span class="lineno">  890</span>&#160;</div>
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